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Cisco Express Forwarding Commands
This chapter describes the commands used to configure and monitor Cisco Express Forwarding (CEF) on a Cisco ASR 9000 Series Aggregation Services Router .
For detailed information about CEF concepts, configuration tasks, and examples, see the Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services Configuration Guide.
- clear adjacency statistics
- clear cef ipv4 drops
- clear cef ipv4 exceptions
- clear cef ipv4 interface bgp-policy-statistics
- clear cef ipv4 interface rpf-statistics
- clear cef ipv6 drops
- clear cef ipv6 exceptions
- clear cef ipv6 interface bgp-policy-statistics
- ipv4 bgp policy accounting
- ipv4 bgp policy propagation
- ipv4 verify unicast source reachable-via
- rp mgmtethernet forwarding
- show adjacency
- show cef
- show cef bgp-attribute
- show cef external
- show cef recursive-nexthop
- show cef summary
- show cef ipv4
- show cef ipv4 adjacency
- show cef ipv4 adjacency hardware
- show cef ipv4 drops
- show cef ipv4 exact-route
- show cef ipv4 exceptions
- show cef ipv4 hardware
- show cef ipv4 interface
- show cef ipv4 interface bgp-policy-statistics
- show cef ipv4 non-recursive
- show cef ipv4 resource
- show cef ipv4 summary
- show cef ipv4 unresolved
- show cef ipv6
- show cef ipv6 adjacency
- show cef ipv6 adjacency hardware
- show cef ipv6 drops
- show cef ipv6 exact-route
- show cef ipv6 exceptions
- show cef ipv6 hardware
- show cef ipv6 interface
- show cef ipv6 non-recursive
- show cef ipv6 resource
- show cef ipv6 summary
- show cef ipv6 unresolved
- show cef mpls adjacency
- show cef mpls adjacency hardware
- show cef mpls interface
- show cef mpls unresolved
- show cef vrf
clear adjacency statistics
To clear adjacency packet and byte counter statistics, use the clear adjacency statistics command in EXEC mode.
clear adjacency statistics [ ipv4 [ nexthop ipv4-address ] | mpls | ipv6 ] [ interface-type interface-instance | location node-id ]
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The clear adjacency statistics command is useful for troubleshooting network connection and forwarding problems.
If you do not specify any of the optional keywords, all adjacency statistics are cleared for the node on which the command is issued.
Task ID
clear cef ipv4 drops
To clear Cisco Express Forwarding (CEF) IPv4 packet drop counters, use the clear cef ipv4 dropscommand in EXEC mode.
Syntax Description
location node-id
Clears IPv4 packet drop counters for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command will clear IPv4 CEF drop counters only for the node on which the command is issued.
Task ID
Examples
The following example displays sample output for the IPv4 Cisco Express Forwarding (CEF) table packet drop counters, and clears IPv4 CEF drop counters for location 0/1/CPU0:
RP/0/RSP0/CPU0:router# show cef ipv4 drops CEF Drop Statistics Node: 0/1/CPU0 Unresolved drops packets : 0 Unsupported drops packets : 0 Null0 drops packets : 0 No route drops packets : 0 No Adjacency drops packets : 0 Checksum error drops packets : 0 RPF drops packets : 0 RPF suppressed drops packets : 0 RP destined drops packets : 0 Node: 0/6/CPU0 Unresolved drops packets : 0 Unsupported drops packets : 0 Null0 drops packets : 0 No route drops packets : 0 No Adjacency drops packets : 0 Checksum error drops packets : 0 RPF drops packets : 0 RPF suppressed drops packets : 0 RP destined drops packets : 0 Node: 0/RSP0RP00/CPU0 Unresolved drops packets : 0 Unsupported drops packets : 0 Null0 drops packets : 0 No route drops packets : 0 No Adjacency drops packets : 0 Checksum error drops packets : 0 RPF drops packets : 0 RPF suppressed drops packets : 0 RP destined drops packets : 0 Node: 0/RSP0RP00/CPU0 Unresolved drops packets : 0 Unsupported drops packets : 0 Null0 drops packets : 0 No route drops packets : 0 No Adjacency drops packets : 0 Checksum error drops packets : 0 RPF drops packets : 0 RPF suppressed drops packets : 0 RP destined drops packets : 0 RP/0/RSP0/CPU0:router# clear cef ipv4 drops location 0/1/CPU0 Node: 0/1/CPU0 Clearing CEF Drop Statisticsclear cef ipv4 exceptions
To clear IPv4 Cisco Express Forwarding (CEF) exception packet counters, use the clear cef ipv4 exceptions command in EXEC mode.
Syntax Description
location node-id
Clears IPv4 CEF exception packet counters for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command will clear IPv4 CEF exception packet counters for all nodes.
Task ID
Examples
The following example displays sample output for the IPv4 Cisco Express Forwarding (CEF) exception packet counters, and clear s IPv4 CEF exception packets node 0/1/CPU0:
RP/0/RSP0/CPU0:router# show cef ipv4 exceptions CEF Exception Statistics Node: 0/1/CPU0 Slow encap packets : 0 Unsupported packets : 0 Redirect packets : 0 Receive packets : 0 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 Node: 0/6/CPU0 Slow encap packets : 0 Unsupported packets : 0 Redirect packets : 0 Receive packets : 0 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 Node: 0/RSP0RP00/CPU0 Slow encap packets : 1 Unsupported packets : 0 Redirect packets : 0 Receive packets : 71177 Broadcast packets : 23648 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 Node: 0/RSP0RP00/CPU0 Slow encap packets : 0 Unsupported packets : 0 Redirect packets : 0 Receive packets : 167314 Broadcast packets : 22656 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 RP/0/RSP0/CPU0:router# clear cef ipv4 exceptions location 0/1/CPU0 Node: 0/1/CPU0 Clearing CEF Exception Statisticsclear cef ipv4 interface bgp-policy-statistics
To clear Cisco Express Forwarding (CEF) IPv4 interface Border Gateway Protocol (BGP) policy statistics, use the clear cef ipv4 interface bpg-policy-statistics command in EXEC mode.
Syntax Description
type
Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or virtual interface.
Use the show interfaces command to see a list of all interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
This command is not supported on ASR 9000 Ethernet Line Cards. This command clears the Border Gateway Protocol (BGP) policy accounting counters for the specified interface.
Task ID
Examples
The following example shows how to clear IPv4 CEF BGP policy statistics on a tenGigE interface:
RP/0/RSP0/CPU0:router# clear cef ipv4 interface tenGigE 0/4/0/0 bgp-policy-statisticsclear cef ipv4 interface rpf-statistics
To clear Cisco Express Forwarding (CEF) IPv4 interface unicast reverse path forwarding (RPF) statistics, use the clear cef ipv4 interface rpf-statistics command in EXEC mode.
Syntax Description
type
Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Either a physical interface instance or a virtual interface instance as follows:
- Physical interface instance. Naming notation is rack/slot/module/port and a slash between values is required as part of the notation.
- rack: Chassis number of the rack.
- slot: Physical slot number of the modular services card or line card.
- module: Module number. A physical layer interface module (PLIM) is always 0.
- port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route processor card, the physical slot number is alphanumeric ( RSP0 RP0 or RP1 ) and the module is CPU0. Example: interface MgmtEth0/ RSP0 RP1 /CPU0/0.
- Virtual interface instance. Number range varies depending on interface type.
For more information about the syntax for the router, use the question mark (?) online help function.
location node-id
(Optional) Clears IPv4 unicast reverse path forwarding (RPF) counters for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The clear cef ipv4 interface rpf-statistics command clears the unicast reverse path forwarding (RPF) counters for the specified interface.
Task ID
clear cef ipv6 drops
To clear Cisco Express Forwarding (CEF) IPv6 packet drop counters, use the clear cef ipv6 drop command in EXEC mode.
Syntax Description
location node-id
Clears IPv6 packet drop counters for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command clears IPv6 CEF drop counters for all nodes.
Task ID
Examples
The following example displays sample output for the IPv6 Cisco Express Forwarding (CEF) table packet drop counters, and clears IPv6 CEF drop counters for location 0/1/CPU0:
RP/0/RSP0/CPU0:router# clear cef ipv6 drops CEF Drop Statistics Node: 0/1/CPU0 Unresolved drops packets : 0 Unsupported drops packets : 0 Null0 drops packets : 0 No route drops packets : 0 No Adjacency drops packets : 0 Checksum error drops packets : 0 RPF drops packets : 0 RPF suppressed drops packets : 0 RP destined drops packets : 0 Node: 0/6/CPU0 Unresolved drops packets : 0 Unsupported drops packets : 0 Null0 drops packets : 0 No route drops packets : 0 No Adjacency drops packets : 0 Checksum error drops packets : 0 RPF drops packets : 0 RPF suppressed drops packets : 0 RP destined drops packets : 0 Node: 0/RSP0/CPU0 Unresolved drops packets : 0 Unsupported drops packets : 0 Null0 drops packets : 0 No route drops packets : 0 No Adjacency drops packets : 0 Checksum error drops packets : 0 RPF drops packets : 0 RPF suppressed drops packets : 0 RP destined drops packets : 0 Node: 0/RSP0/CPU0 Unresolved drops packets : 0 Unsupported drops packets : 0 Null0 drops packets : 0 No route drops packets : 0 No Adjacency drops packets : 0 Checksum error drops packets : 0 RPF drops packets : 0 RPF suppressed drops packets : 0 RP destined drops packets : 0 RP/0/RSP0/CPU0:router# clear cef ipv6 drop Node: 0/1/CPU0 Clearing CEF Drop Statisticsclear cef ipv6 exceptions
To clear IPv6 Cisco Express Forwarding (CEF) exception packet counters, use the clear cef ipv6 exceptions command in EXEC mode.
Syntax Description
location node-id
Clears IPv6 CEF exception packet counters for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command clears IPv6 CEF exception packet counters for all nodes.
Task ID
Examples
The following example displays sample output for the IPv6 Cisco Express Forwarding (CEF) exception packet counters, and clears the IPv6 CEF exception packets for location:
RP/0/RSP0/CPU0:router# show cef ipv6 exceptions CEF Exception Statistics Node: 0/1/CPU0 Slow encap packets : 0 Unsupported packets : 0 Redirect packets : 0 Receive packets : 0 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 Node: 0/6/CPU0 Slow encap packets : 0 Unsupported packets : 0 Redirect packets : 0 Receive packets : 0 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 Node: 0/RSP0/CPU0 Slow encap packets : 0 Unsupported packets : 0 Redirect packets : 0 Receive packets : 0 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 Node: 0/RSP0/CPU0 Slow encap packets : 0 Unsupported packets : 0 Redirect packets : 0 Receive packets : 0 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 RP/0/RSP0/CPU0:router# clear cef ipv6 exceptions location 0/1/CPU0 Node: 0/1/CPU0 Clearing CEF Exception Statisticsclear cef ipv6 interface bgp-policy-statistics
To clear Cisco Express Forwarding (CEF) IPv6 interface Border Gateway Protocol (BGP) policy statistics, use the clear cef ipv6 interface bpg-policy-statistics command in EXEC mode.
Syntax Description
type
Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or virtual interface.
Use the show interfaces command to see a list of all interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The clear cef ipv6 interface bgp-policy-statistics command clears the Border Gateway Protocol (BGP) policy accounting counters for the specified interface.
Task ID
ipv4 bgp policy accounting
To enable Border Gateway Protocol (BGP) policy accounting, use the ipv4 bgp policy accounting command in interface configuration mode. To disable BGP policy accounting, use the no form of this command.
ipv4 bgp policy accounting { input | output { destination-accounting [source-accounting] | source-accounting [destination-accounting] } }
no ipv4 bgp policy accounting { input | output { destination-accounting [source-accounting] | source-accounting [destination-accounting] } }
Syntax Description
input
Enables BGP policy accounting policy on the ingress IPv4 unicast interface.
output
Enables BGP policy accounting policy on the egress IPv4 unicast interface.
{destination-accounting [source-accounting] | source-accounting [destination-accounting]}
When you specify the ingress or egress interface, you must specify one of the following keywords:
- destination-accounting —Enables accounting policy on the basis of the destination address.
- source-accounting —Enables accounting policy on the basis of the source address.
After specifying destination-accounting you can optionally specify source-accounting , or after specifying source-accounting , you can optionally specify destination-accounting .
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
When you use the no form of the command, accounting is disabled for both the source and destination. To change accounting on either the destination or source address, reconfigure the ipv4 bgp policy accounting command specifying the destination-accounting or source-accounting keyword. In the following example, you want BGP policy accounting disabled on the source address after enabling source and destination address accounting earlier:
RP/0/RSP0/CPU0:router(config-if)# ipv4 bgp policy accounting output destination-accountingSee the Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide for information about configuring a BGP policy. BGP accounting policy is based on community lists, autonomous system numbers, or autonomous system paths.
For BGP policy propagation to function, you must enable BGP.
To specify the accounting policy, the proper route policy configuration must be in place, matching specific BGP attributes using the set traffic-index command. In BGP router configuration mode, use the table-policy command to modify the accounting buckets when the IP routing table is updated with routes learned from BGP. To display accounting policy information, use the show cef ipv4 interface bgp-policy-statistics , show bgp policy, and show route bgp commands.
This command is not supported on ASR 9000 Ethernet Line Cards.
Task ID
Examples
The following example shows how to configure BGP policy accounting:
RP/0/RSP0/CPU0:router(config)# interface gigabitethernet pos 0/1/0/0 RP/0/RSP0/CPU0:router(config-if)# ipv4 bgp policy accounting output source-accountingRelated Commands
Command
Description
route-policy (BGP)
Defines a route policy. For more information, see Cisco ASR 9000 Series Aggregation Services Router Routing Command Reference
show bgp policy
Displays information about BGP advertisements under a proposed policy. For more information, see Cisco ASR 9000 Series Aggregation Services Router Routing Command Reference
Displays IPv4 CEF BGP policy statistics.
show route
Displays the current routes for BGP in the RIB. For more information, see Cisco ASR 9000 Series Aggregation Services Router Routing Command Reference
table-policy
Applies a routing policy to routes being installed into the routing table. For more information, see Cisco ASR 9000 Series Aggregation Services Router Routing Command Reference
ipv4 bgp policy propagation
To enable QoS Policy Propagation on BGP (QPPB) on an interface, use the ipv4 bgp policy propagation command in interface configuration mode. To disable QoS policy propagation on BGP, use the no form of this command.
ipv4 bgp policy propagation {input} {ip-precedence | qos-group} {destination | source}
no ipv4 bgp policy propagation {input} {ip-precedence | qos-group} {destination | source}
Syntax Description
input
Enables QPPB on the ingress IPv4 unicast interface.
ip-precedence
Specifies that the QoS policy is based on the IP precedence.
qos-group
Specifies that the QoS policy is based on the QoS group ID.
destination
Specifies that the IP precedence bit or QoS group ID from the destination address entry is used in the route table.
source
Specifies that the IP precedence bit or QoS group ID from the source address entry is used in the route table.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
For the QPPB feature to work, you must enable BGP and CEF. In addition, the proper route-map configuration must be in place to specify the IP precedence or QoS group ID (for example, set precedence command).
If you specify both source and destination on the interface, the software looks up the source address in the routing table and classifies the packet based on the source address first; then the software looks up the destination address in the routing table and reclassifies it based on the destination address.
Task ID
Examples
The following example shows how to enable QPPB on the GigabitEthernet interface:
The following example shows how to enable QPPB on the Packet-over-SONET/SDH (POS) interface:
RP/0/RSP0/CPU0:router(config)# interface gigabitethernet pos 0/1/1/0 RP/0/RSP0/CPU0:router(config-if)# ipv4 address 192.3.1.1 255.255.255.252 RP/0/RSP0/CPU0:router(config-if)# ipv4 bgp policy propagation input ip-precedence destinationRelated Commands
Command
Description
route-policy (BGP)
Defines a route policy.
show bgp policy
Displays information about BGP advertisements under a proposed policy.
Displays IPv4 CEF BGP policy statistics.
show route
Displays the current routes for BGP in the RIB.
table-policy
Applies a routing policy to routes being installed into the routing table. For more information, see Cisco ASR 9000 Series Aggregation Services Router Routing Command Reference
ipv4 verify unicast source reachable-via
To enable IPv4 unicast Reverse Path Forwarding (RPF) checking, use the ipv4 verify unicast source reachable-via command in an appropriate configuration mode. To disable unicast RPF, use the no form of this command.
ipv4 verify unicast source reachable-via { any | rx } [allow-default] [allow-self-ping]
no ipv4 verify unicast source reachable-via { any | rx } [allow-default] [allow-self-ping]
Syntax Description
any Enables loose unicast RPF checking. If loose unicast RPF is enabled, a packet is not forwarded unless its source prefix exists in the routing table.
rx Enables strict unicast RPF checking. If strict unicast RPF is enabled, a packet is not forwarded unless its source prefix exists in the routing table and the output interface matches the interface on which the packet was received.
allow-default (Optional) Enables the matching of default routes. This option applies to both loose and strict RPF.
allow-self-ping (Optional) Enables the router to ping out an interface.This option applies to both loose and strict RPF.
Command History
Release
Modification
Release 3.7.2
This command was introduced.
Release 4.2.0
This command was supported in the dynamic template configuration mode for BNG.
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Use the ipv4 verify unicast source reachable-via interface command to mitigate problems caused by malformed or forged (spoofed) IP source addresses that pass through a router. Malformed or forged source addresses can indicate denial-of-service (DoS) attacks based on source IP address spoofing.
When strict unicast RPF is enabled on an interface, the router examines all packets received on that interface. The router checks to make sure that the source address appears in the routing table and matches the interface on which the packet was received.
When loose unicast RPF is enabled on an interface, the router examines all packets received on that interface. The router checks to make sure that the source address can be reached through any of the router interfaces.
Task ID
Examples
This example shows how to configure strict RPF on gigabitethernet interface 0/1/0/0:RP/0/RSP0/CPU0:router(config)# interface gigabitethernet 0/1/0/0 RP/0/RSP0/CPU0:router(config-if)# ipv4 verify unicast source reachable-via rxThis example shows how to configure loose RPF on gigabitethernet interface 0/0/0/1:RP/0/RSP0/CPU0:routerios(config)# interface gigabitethernet 0/0/0/1 RP/0/RSP0/CPU0:routerios(config-if)# ipv4 verify unicast source reachable-via anyrp mgmtethernet forwarding
To enable switching from the line card to the route processor Management Ethernet interfaces, use the rp mgmtethernet forwarding command in global configuration mode. To disable switching from the modular services card to the route processor Management Ethernet interfaces, use the no form of this command.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
The rp mgmtethernet forwarding command needs LC reload to take effect.
Note
If enabled, the RP CPU is used to forward packets because the RP does not have a packet processing engine like the line cards.
Task ID
show adjacency
To display Cisco Express Forwarding (CEF) adjacency table information, use the show adjacency command in EXEC mode.
show adjacency [ ipv4 [ nexthop ipv4-address ] | mpls | ipv6 ] [ interface type interface-instance ] [remote] [detail] [ location node-id ]
Syntax Description
ipv4
(Optional) Displays only IPv4 adjacencies.
nexthop ipv4-address
(Optional) Displays adjacencies that are destined to the specified IPv4 nexthop.
mpls
(Optional) Displays only MPLS adjacencies.
ipv6
(Optional) Displays only IPv6 adjacencies.
interface-type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface-instance
Either a physical interface instance or a virtual interface instance:
- Physical interface instance. Naming notation is rack/slot/module/port and a slash mark between values is required as part of the notation.
- rack: Chassis number of the rack.
- slot: Physical slot number of the line card.
- module: Module number. A physical layer interface module (PLIM) is always 0.
- port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route processor card, the physical slot number is alphanumeric ( RSP0 RP0 or RP1 ) and the module is CPU0. Example: interface MgmtEth0/ RSP0 RP1 /CPU0/0.
- Virtual interface instance. Number range varies depending on interface type.
For more information about the syntax for the router, use the question mark (?) online help function.
remote
(Optional) Displays only remote adjacencies. A remote adjacency is an internal adjacency used to forward packets between line cards.
detail
(Optional) Displays detailed adjacency information, including Layer 2 information.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
This command is used to verify that an adjacency exists for a connected device, that the adjacency is valid, and that the MAC header rewrite string is correct.
If you do not specify a node with the location keyword and node-id argument, this command displays the CEF adjacency table for the node on which the command is issued.
Task ID
Examples
The following is sample output from show adjacency command with the location keyword specified:
RP/0/RSP0/CPU0:router# show adjacency location 0/0/CPU0 Interface Address Version Refcount Protocol gigabitethernet0 /0/1/2(src mac only) 6 1 ipv4 gigabitethernet0 /0/1/2 point to point 7 100004 gigabitethernet0 /0/1/2 (interface) 3 1
This table describes the significant fields shown in the display.
Table 1 show adjacency Command Field DescriptionsField
Description
Interface
Outgoing interface associated with the adjacency.
Address
Address can represent one of these addresses:
Information in parentheses indicates different types of adjacency.
Version
Version number of the adjacency. Updated whenever the adjacency is updated.
Refcount
Number of references to this adjacency.
Protocol
Protocol for which the adjacency is associated.
0f000800 and 000c86f33d330800453a21c10800
Layer 2 encapsulation string.
mtu
Value of the maximum transmission unit (MTU).
flags
Internal field.
packets
Number of packets going through the adjacency.
bytes
Number of bytes going through the adjacency.
show cef
To display information about packets forwarded by Cisco Express Forwarding (CEF), use the show cef command in EXEC mode.
show cef [ prefix [mask] ] [ hardware { egress | ingress } | detail ] [ location { node-id | all } ]
Syntax Description
prefix
(Optional) Longest matching CEF entry for the specified IPv4 destination prefix.
mask
(Optional) Exact CEF entry for the specified IPv4 prefix and mask.
hardware
(Optional) Displays detailed information about hardware.
egress
Displays information from the egress packet switch exchange (PSE) file.
ingress
Displays information from the ingress packet switch exchange (PSE) file.
detail
(Optional) Displays full details.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
all
(Optional) Displays all locations.
Command Default
When the prefix is not explicitly specified, this command displays all the IPv4 prefixes that are present in CEF. When not specified, the location defaults to the active Route Processor (RP) node.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following sample output shows the load information flag from the show cef command for both hardware and ingress keywords:
RP/0/RSP0/CPU0:router# show cef 101.1.3.0/24 hardware ingress location 0/3/CPU0 101.1.3.0/24, version 0, internal 0x40000001 (0x598491e8) [1], 0x0 (0x0), (0x0) local adjacency 10.0.101.2 Prefix Len 24, traffic index 0, precedence routine (0) BGP Attribute: id: 8, Local id: 6, Origin AS: 1003, Next Hop AS: 4 via 10.0.101.2, 2 dependencies, recursive next hop 10.0.101.2 via 10.0.101.2/32 Number of Mnodes: 2 Mnode 0 HW Location: 0x00080404 HW Value [ 0x0081a600 00000000 00000000 00000000 ] Leaf Mnode 1 HW Location: 0x040d3030 Hardware Leaf: PLU Leaf Value [ 0x8000d800 028842c6 00000000 1fff2000 ] FCR 2 TLU Address 0x00210b19 TI 0 AS 6 VPN Label 1 0 ************* IGP LoadInfo ***************** Loadinfo HW Max Index 0 Loadinfo SW Max Index 0 PBTS Loadinfo Attached: No LI Path [ 0] HFA Info: 0x10204028 FCR: 4 ******************************************** ------------------------------------------------ HW Rx Adjacency 0 Detail: ------------------------------------------------ Rx Adj HW Address 0x02040280 (ADJ) packets 0 bytes 0 HFA Bits 0x80 gp 16 mtu 9248 (Fabric MTU) TAG length 0 OI 0x409 (Tx uidb 0 PPindex 1033) OutputQ 0 Output-port 0x0 local-outputq 0x8000 [ 0x80181040 00002420 00000409 00008000 ] [ 0x00000000 00000000 00000000 00000000 ] [ 0x00000000 00000000 00000000 00000000 ]show cef bgp-attribute
To display Border Gateway Protocol (BGP) attributes for Cisco Express Forwarding (CEF), use the show cef bgp-attribute command in EXEC mode.
show cef bgp-attribute [ attribute-id index-id ] [ local-attribute-id index-id ] [ location node-id ]
Syntax Description
attribute-id index-id
(Optional) Displays FIB attribute index.
local-attribute-id index-id
(Optional) Displays FIB local attribute index.
location node-id
(Optional) Displays BGP information for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following example shows how to use the show cef bgp-attribute command:
RP/0/RSP0/CPU0:router# show cef bgp-attribute Total number of entries: 75742 BGP Attribute ID: 0x2058a, Local Attribute ID: 0x1 Origin AS: 195, Next Hop AS: 195 BGP Attribute ID: 0x20583, Local Attribute ID: 0x2 Origin AS: 22, Next Hop AS: 22 BGP Attribute ID: 0x20582, Local Attribute ID: 0x3 Origin AS: 21, Next Hop AS: 21 BGP Attribute ID: 0x20585, Local Attribute ID: 0x4 Origin AS: 28, Next Hop AS: 28 BGP Attribute ID: 0x20584, Local Attribute ID: 0x5 Origin AS: 27, Next Hop AS: 27 BGP Attribute ID: 0x2057f, Local Attribute ID: 0x6 Origin AS: 86, Next Hop AS: 86 BGP Attribute ID: 0x2058b, Local Attribute ID: 0x7 Origin AS: 196, Next Hop AS: 196 BGP Attribute ID: 0x20589, Local Attribute ID: 0x8 Origin AS: 194, Next Hop AS: 194
This table describes the significant fields shown in the display.
Table 2 show cef bgp-attribute Command Field DescriptionsField
Description
BGP Attribute ID
Displays the id assigned by BGP.
Local Attribute ID
Displays the id assigned by FIB.
Origin AS
Displays the origin AS of the prefix that carries this attribute id.
Next Hop AS
Displays the AS that contains the BGP nexthop for this prefix.
show cef external
To display Cisco Express Forwarding (CEF) external client dependency information, use theshow cef external command in EXEC mode.
show cef external [ hardware { ingress | egress } ] [prefix] { ifhandle | tunnel-id | client-name } { 6vpe | 6pe-ipvpn | eos0-ldi | ip-reachability } [detail] [ location node-id ]
Syntax Description
hardware
(Optional) Displays hardware information.
ingress
(Optional) Displays hardware information programmed in ingress packet forwarding hardware.
egress
(Optional) Displays hardware information programmed in egress packet forwarding hardware.
prefix
(Optional) Displays external client information for a specific prefix.
ifhandle
Specifies interface handle.
tunnel-id
Specifies the tunnel identifier.
client-name
Name of a particular client. The dependency information for the given client name is displayed.
6vpe
Displays 6VPE (IPv6 VPN Provide Edge) dependency information.
6vpe-ipvpn
Displays 6VPE over IP-VPN dependency information.
eos0-ldi
Displays Multiprotocol Label Switching (MPLS) end of stack 0 (EOS0) load balancing dependency information.
ip-reachability
Displays Internet Protocol (IP) reachability information.
detail
(Optional) Displays the dependency information in detail.
location node-id
(Optional) Displays external client dependency information for the specified node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following sample output is from the show cef external command:
RP/0/RSP0/CPU0:router#show cef external hardware egress location 0/0/CPU0 Mon Dec 13 11:09:21.041 UTC IPV4: ----- Client Name : l2fib_mgr (comp-id: 0x7e6d) (0x9f6f70fc) Protocol : ipv4 Prefix : 3.3.3.3 (0x9f13d22c) Gateway array : 9e8fb058 (0x201500/1) Loadinfo : 9fbd41a8 (0x10181101/1) Number of notifs : 1 Interest type : EOS0 LDI updates Table Id : 0xe0000000 Cookie Value : 6c326669625f6d67720000000 State : resolved, cached plat context Via : 16000/0 Added to pend list: Dec 13 11:08:37.920 Load distribution: 0 (refcount 1) Hash OK Interface Address 0 Y GigabitEthernet0/0/0/9 10.0.9.2 Data identical on all NPs: ---- ECD LDI platform context data ---- Flags: 0x21 L2VPN LDI index: 0x1 (Search Key:0x100) Preferred path index: 0x5002dea0 Cached L2FIB notification data: l2vpn_ldi_index: 0x1 (Search Key:0x100) recursion_level: 1 (RECURSION_NONE), num_paths: 1 IGP Path info #0 is_unresolved: 0 Primary path: is_lag: 0, sfp_or_lagid: 1, ifhandle: 0x4000440 Bkup path: is not valid ---- End of platform context data ----RP/0/RSP0/CPU0:router#show cef external hardware egress location 0/0/CPU0 Mon Dec 13 11:22:47.605 UTC IPV4: ----- Client Name : l2fib_mgr (comp-id: 0x7e6d) (0x9f6f70fc) Protocol : ipv4 Prefix : 100.100.100.2 (0x9f13d22c) Gateway array : 9e8fb058 (0x201500/1) Loadinfo : 9fbd41a8 (0x10181101/1) Number of notifs : 2 Interest type : EOS0 LDI updates Table Id : 0xe0000000 Cookie Value : 6c326669625f6d67720000000 State : resolved, cached plat context Via : 16006/0 Added to pend list: Dec 13 11:21:23.037 Load distribution: 0 (refcount 1) Hash OK Interface Address 0 Y recursive 16006/0 Data identical on all NPs: ---- ECD LDI platform context data ---- Flags: 0x21 L2VPN LDI index: 0x2 (Search Key:0x200) Preferred path index: 0x5002dea8 Cached L2FIB notification data: l2vpn_ldi_index: 0x2 (Search Key:0x200) recursion_level: 2 (RECURSION_ONE), num_paths: 1 BGP Path info #0 IGP Path info #0 is_unresolved: 0 Primary path: is_lag: 0, sfp_or_lagid: 1, ifhandle: 0x4000440 Bkup path: is not valid ---- End of platform context data ----show cef recursive-nexthop
To display Cisco Express Forwarding (CEF) recursive next-hop information, use theshow cef recursive-nexthop command in EXEC mode.
Syntax Description
hardware
(Optional) Displays hardware information related to the recursive next hop.
location node-id
(Optional) Displays recursive next-hop information for the specified node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
show cef summary
To display summary information for the Cisco Express Forwarding (CEF) table, use the show cef summary command in EXEC mode.
Syntax Description
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
all
(Optional) Displays all locations.
Command Default
The show cef summary command assumes the IPv4 CEF table and the active RP node as the location.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following sample output is from the show cef summary command.
RP/0/RSP0/CPU0:router# show cef summary location 0/1/CPU0 Router ID is 10.1.1.1 IP CEF with switching (Table Version 0) for node0_1_CPU0 Load balancing: L3 Tableid 0xe0000000, Vrfid 0x60000000, Vrid 0x20000000, Flags 0x301 Vrfname default, Refcount 318 170 routes, 0 reresolve, 0 unresolved (0 old, 0 new), 12240 bytes 183 load sharing elements, 57292 bytes, 184 references 19 shared load sharing elements, 7036 bytes 164 exclusive load sharing elements, 50256 bytes 0 CEF route update drops, 10 revisions of existing leaves Resolution Timer: 15s 0 prefixes modified in place 0 deleted stale prefixes 21 prefixes with label imposition, 60 prefixes with label information Adjacency Table has 49 adjacencies 25 incomplete adjacencies
This table describes the significant fields shown in the display.
Table 3 show cef summary Command Field DescriptionsField
Description
Load balancing
Current load-balancing mode. The default value is L3.
Table Version
Version of the CEF table.
tableid
Table identification number.
vrfname
VRF name.
flags
Option value for the table
routes
Total number of routes.
reresolve
Total number of routes being reresolved.
unresolved (x old, x new)
Number of routes not yet resolved.
load sharing elements
Total number of internal load-sharing data structures.
bytes
Total memory used by internal load sharing data structures.
references
Total reference count of all internal load sharing data structures.
CEF resets
Number of CEF table resets.
revisions of existing leaves
Number of updates to existing prefixes.
Exponential (currently xs, peak xs)
Currently not used.
prefixes modified in place
Prefixes modified in place.
Adjacency Table has x adjacencies
Total number of adjacencies.
x incomplete adjacency
Total number of incomplete adjacencies.
show cef ipv4
To display the IPv4 Cisco Express Forwarding (CEF) table, use the show cef ipv4 command in EXEC mode.
show cef [ vrf vrf-name ] ipv4 [ prefix [mask] | interface-type interface-instance ] [detail] [ location node-id ]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
prefix
(Optional) Longest matching CEF entry for the specified IPv4 destination prefix.
mask
(Optional) Exact CEF entry for the specified IPv4 prefix and mask.
interface-type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface-instance
Either a physical interface instance or a virtual interface instance:
- Physical interface instance. Naming notation is rack/slot/module/port and a slash mark between values is required as part of the notation.
- rack: Chassis number of the rack.
- slot: Physical slot number of the line card.
- module: Module number. A physical layer interface module (PLIM) is always 0.
- port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route processor card, the physical slot number is alphanumeric ( RSP0 RP0 or RP1 ) and the module is CPU0. Example: interface MgmtEth0/ RSP0 RP1 /CPU0/0.
- Virtual interface instance. Number range varies depending on interface type.
For more information about the syntax for the router, use the question mark (?) online help function.
detail
(Optional) Displays full CEF entry information.
location node-id
(Optional) Displays the IPv4 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command displays the CEF table on the node in which the command is issued. Otherwise, the command is effective on the node specified by the location node-id keyword and argument.
Task ID
Examples
The following sample output is from the show cef ipv4 command:
RP/0/RSP0/CPU0:router/CPU0:router# show cef ipv4 Prefix Next Hop Interface 10.0.0.0/0 10.25.0.1 MgmtEth0/RSP0/CPU0/0 10.0.0.0/32 broadcast 10.25.0.0/16 attached MgmtEth0/RSP0/CPU0/0 10.25.12.10/32 receive MgmtEth0/RSP0/CPU0/0 10.25.13.12/32 10.25.13.12 MgmtEth0/RSP0/CPU0/0 10.25.16.11/32 10.25.16.11 MgmtEth0/RSP0/CPU0/0 10.25.22.10/32 10.25.22.10 MgmtEth0/RSP0/CPU0/0 10.25.26.10/32 10.25.26.10 MgmtEth0/RSP0/CPU0/0 10.25.41.2/32 10.25.41.2 MgmtEth0/RSP0/CPU0/0 10.25.41.5/32 10.25.41.5 MgmtEth0/RSP0/CPU0/0 10.25.42.5/32 10.25.42.5 MgmtEth0/RSP0/CPU0/0 10.25.44.15/32 10.25.44.15 MgmtEth0/RSP0/CPU0/0 10.25.55.2/32 10.25.55.2 MgmtEth0/RSP0/CPU0/0 10.25.255.255/32 10.25.255.255 MgmtEth0/RSP0/CPU0/0 10.0.0.0/4 0.0.0.0 10.0.0.1/32 0.0.0.0 10.255.255.255/32 broadcastshow cef ipv4 adjacency
To display Cisco Express Forwarding (CEF) IPv4 adjacency status and configuration information, use the show cef ipv4 adjacency command in EXEC mode.
show cef [ vrf vrf-name ] ipv4 adjacency [ interface-type interface-path-id ] [ location node-id ] [detail] [discard] [glean] [null] [punt] [remote] [protected]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
interface-type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface- path-id
(Optional) Either a physical interface instance or a virtual interface instance:
- Physical interface instance. Naming notation is rack/slot/module/port and a slash mark between values is required as part of the notation.
- rack: Chassis number of the rack.
- slot: Physical slot number of the line card.
- module: Module number. A physical layer interface module (PLIM) is always 0.
- port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route processor card, the physical slot number is alphanumeric ( RSP0 RP0 or RP1 ) and the module is CPU0. Example: interface MgmtEth0/ RSP0 RP1 /CPU0/0.
- Virtual interface instance. Number range varies depending on interface type.
For more information about the syntax for the router, use the question mark (?) online help function.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
detail
(Optional) Displays the detailed adjacency information.
discard
(Optional) Filters out and displays only the discarded adjacency information.
glean
(Optional) Filters out and displays only the glean adjacency information.
null
(Optional) Filters out and displays only the adjacency information.
punt
(Optional) Filters out and displays only the punt adjacency information.
remote
(Optional) Filters out and displays only the remote adjacency information.
protected
(Optional) Filters out and displays only the IP-Fast Reroute (FRR) protected adjacency information.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, the show cef ipv4 adjacency command displays the CEF adjacency table for the node on which the command is issued.
Task ID
Examples
The following sample output is from show cef ipv4 adjacency command :
RP/0/RSP0/CPU0:router:# show cef ipv4 adjacency MgmtEth 0/RSP0/CPU0/0 Display protocol is ipv4 Interface Address Type Refcount Mg0/RSP0 /CPU0/0Prefix: 10.25.0.3/32 local 2 Adjacency: PT:0x782a2900 12.25.0.3/32 Interface: Mg0/RSP0/CPU0/0 MAC: 00.d0.02.75.ab.fd.00.11.93.ef.e3.50.08.00 Interface Type: 0x8, Base Flags: 0x1 Dependent adj type: remote Dependent adj intf: Mg0/RSP0/CPU0/0 Mg0/RSP0 /CPU0/0Prefix: 10.24.0.32/32 remote 6 Adjacency: PT:0x782a2b58 Interface: Mg0/RSP0/CPU0/0 MAC: 28.4e.4f.4e.45.29 Interface Type: 0x8, Base Flags: 0x0
This table describes the significant fields shown in the display.
Table 5 show cef ipv4 adjacency Command Field DescriptionsField
Description
Interface
Interface associated with the prefix.
Address
Prefix address information.
Type
Type of adjacency, can be either local or remote.
Refcount
Number of times the adjacency is referenced by other routers.
show cef ipv4 adjacency hardware
To display Cisco Express Forwarding (CEF) IPv4 adjacency hardware status and configuration information, use the show cef ipv4 adjacency hardware command in EXEC mode.
show cef [ vrf vrf-name ] ipv4 adjacency hardware { egress | ingress } [ detail | discard | drop | glean | location node-id | null | punt | protected | remote ]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
egress
Displays information from the egress packet switch exchange (PSE) file.
ingress
Displays information from the ingress packet switch exchange (PSE) file.
detail
(Optional) Displays full details.
discard
(Optional) Displays the discard adjacency information.
drop
(Optional) Displays the drop adjacency information.
glean
(Optional) Displays the glean adjacency information.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
null
(Optional) Displays the null adjacency information.
punt
(Optional) Displays the punt adjacency information.
protected
(Optional) Filters out and displays only the IP-Fast Reroute (FRR) protected adjacency information.
remote
(Optional) Displays the remote adjacency information.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following sample output shows the load information flag from the show cef ipv4 adjacency hardware command for the egress keyword:
RP/0/RSP0/CPU0:router# show cef ipv4 adjacency hardware egress detail location 0/2/CPU0 Display protocol is ipv4 Interface Address Type Refcount tt0 Prefix: 0.0.0.0/32 local 5 no next-hop adj Interface: NULLIFHNDL Mac-length is 0 tunnel interface Interface Type: 0x24, Base Flags: 0x2001 Dependent adj type: remote Dependent adj intf: tt0 TE Flags : 0x41 TLU3(temp) : 0x200b801 [HW: 0x00000001 0x20020000 0x08000000 0x00080000] type : FWD num. entries : 1 uidb index : 2 num. labels : 0 label : 0 encapsulation : unknown (0x8000000) next ptr : 0x800 TLU4 : 0x3000800 Entry[0] [HW: 0x00000080 0x0013c48f 0x880b05ea 0x00580000] label : 0 num. labels : 0 local : 1 mtu : 1514 default sharq : 11 member link : 0 Te0/2/0/1 special 2 Interface: Te0/2/0/1 Type: glean Interface Type: 0x1e, Base Flags: 0x4400 Dependent adj type: remote Dependent adj intf: Te0/2/0/1 TLU 3 Unavailable
This table describes the significant fields shown in the display.
Table 6 show cef ipv4 adjacency hardware Command Field DescriptionsField
Description
Interface
Interface associated with the prefix.
Address
Prefix address information.
Type
Type of adjacency, can be either local or remote.
Refcount
Number of times the adjacency is referenced by other routers.
show cef ipv4 drops
To display IPv4 Cisco Express Forwarding (CEF) table packet drop counters, use the show cef ipv4 drops command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
location node-id
(Optional) Displays IPv4 CEF table packet drop counters for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
A packet might be dropped from the IPv4 CEF table because of unresolved CEF entries, unsupported features, absence of route information, absence of adjacency information, or an IP checksum error.
If you do not specify a node with the location keyword and node-id argument, this command displays IPv4 CEF packet drop counters for all nodes.
Task ID
Examples
The following is sample output from the show cef ipv4 drops for location command:
RP/0/RSP0/CPU0:router# show cef ipv4 drops CEF Drop Statistics Node: 0/0/CPU0 Unresolved drops packets : 0 Unsupported drops packets : 0 Null0 drops packets : 0 No route drops packets : 0 No Adjacency drops packets : 0 Checksum error drops packets : 0 RPF drops packets : 0 RPF suppressed drops packets : 0 RP destined drops packets : 0
Table 7 show cef ipv4 drop Command Field Descriptions Field
Description
Unresolved drops
Drops due to unresolved routes.
Unsupported drops
Drops due to an unsupported feature.
Null0 drops
Drops to the Null0 interface.
No route drops
Number of packets dropped because there were no routes to the destination.
No Adjacency drops
Number of packets dropped because there were no adjacencies established.
Checksum error drops
Drops due to IPv4 checksum error.
RPF drops
Drops due to IPv4 unicast RPF1.
RPF suppressed drops
Drops suppressed due to IPv4 unicast RPF.
RP destined drops
Drops destined for the router.
1 RPF = Reverse Path Forwardingshow cef ipv4 exact-route
To display an IPv4 Cisco Express Forwarding (CEF) exact route, use the show cef ipv4 exact-route command in EXEC mode.
show cef [ vrf vrf-name] ipv4 exact-route { source-address destination-address } [ protocolprotocol-name] [ source-portsource-port] [ destination-portdestination-port] [ ingress-interfacetype interface-path-id] [policy-class-value] [ detail | location node-id]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
source-address
The IPv4 source address in x.x.x.x format.
destination-address
The IPv4 destination address in x.x.x.x format.
protocol protocol name
(Optional) Displays the specified protocol for the route.
source-port source-port
(Optional) Sets the UDP source port. The range is from 0 to 65535.
destination-port destination-port
(Optional) Sets the UDP destination port. The range is from 0 to 65535.
ingress-interface
(Optional) Sets the ingress interface.
type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or virtual interface.
Note Use the show interfaces command to see a list of all interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
policy-class value
(Optional) Displays the class for the policy-based tunnel selection. The range for the tunnel policy class value is from 1 to 7.
detail
(Optional) Displays full CEF entry information.
location node-id
(Optional) Displays the IPv4 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If the Layer 4 information is enabled, the source-port, destination-port, protocol, and ingress-interface fields are required. Otherwise, the output of the show cef ipv4 exact-route command is not correct.
Task ID
Examples
The following sample output is from the show cef ipv4 exact-route command:
RP/0/RSP0/CPU0:router# show cef ipv4 exact-route 10.1.1.1 10.1.1.2 detail 0.0.0.0/0, version 432, proxy default, internal 0x2000201[1] Prefix Len 0, traffic index 0, precedence routine (0) via MgmtEth0/RSP0RP1/CPU0/0show cef ipv4 exceptions
To display IPv4 Cisco Express Forwarding (CEF) exception packet counters, use the show cef ipv4 exceptions command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
location node-id
(Optional) Displays CEF exception packet counters for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
CEF exception packets are those packets that have been sent from the hardware to the software because they require additional handling. The types of IPv4 CEF exception packets are displayed in the command’s output and are defined.
If you do not specify a node with the location keyword and node-id argument, this command displays IPv4 CEF exception packet counters on all nodes.
Task ID
Examples
The following is sample output from the show cef ipv4 exceptions command:
RP/0/RSP0/CPU0:router# show cef ipv4 exceptions CEF Exception Statistics Node: 0/0/CPU0 Slow encap packets : 0 Redirect packets : 0 Receive packets : 306404 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 Node: 0/1/CPU0 Slow encap packets : 0 Redirect packets : 0 Receive packets : 0 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0 Node: 0/2/CPU0 Slow encap packets : 0 Redirect packets : 0 Receive packets : 0 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 314 Fragmented packets : 0 Node: 0/3/CPU0 Slow encap packets : 0 Redirect packets : 0 Receive packets : 0 Broadcast packets : 0 IP options packets : 0 TTL expired packets : 0 Fragmented packets : 0
This table describes the significant fields shown in the display.
Table 9 show cef ipv4 exceptions Command Field DescriptionsField
Description
Slow encap
Number of packets requiring special processing during encapsulation.
Redirect
Number of ICMP2 redirect messages sent.
Receive
Number of packets destined to the router.
Broadcast
Number of broadcasts received.
IP options
Number of IP option packets.
TTL expired
Number of packets with expired TTLs3.
Fragmented
Number of packets that have been fragmented.
2 ICMP = internet control message protocol3 TTL = time to liveshow cef ipv4 hardware
To display Cisco Express Forwarding (CEF) IPv4 hardware status and configuration information, use the show cef ipv4 hardware command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
egress
Displays information from the egress packet switch exchange (PSE) file.
ingress
Displays information from the ingress packet switch exchange (PSE) file.
detail
(Optional) Displays full details.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
show cef ipv4 interface
To display IPv4 Cisco Express Forwarding (CEF)-related information for an interface, use the show cef ipv4 interface command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
type
Interface type. For more information, use the question mark (?) online help function.
in terface-path-id
Either a physical interface instance or a virtual interface instance as follows:
- Physical interface instance. Naming notation is rack/slot/module/port and a slash between values is required as part of the notation.
- rack: Chassis number of the rack.
- slot: Physical slot number of the modular services card or line card.
- module: Module number. A physical layer interface module (PLIM) is always 0.
- port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route processor card, the physical slot number is alphanumeric ( RSP0 RP0 or RP1 ) and the module is CPU0. Example: interface MgmtEth0/ RSP0 RP1 /CPU0/0.
- Virtual interface instance. Number range varies depending on interface type.
For more information about the syntax for the router, use the question mark (?) online help function.
detail
(Optional) Displays detailed CEF information for all the interfaces on the node in which the command is issued.
location node-id
(Optional) Displays IPv4 CEF-related information for an interface. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, the show cef ipv4 interface rpf-statistics command displays the CEF-related information for the interface on the route processor.
Task ID
Examples
The following is sample output from the show cef ipv4 interface command:
RP/0/RSP0/CPU0:router# show cef ipv4 interface MgmtEth 0/RSP0RP0/CPU0/0 MgmtEth0/0/CPU0/0 is up (if_handle 0x01000100) Forwarding is enabled ICMP redirects are never sent IP MTU 1500, TableId 0xe0000000 Reference count 2
This table describes the significant fields shown in the display.
Table 10 show cef ipv4 interface Command Field DescriptionsField
Description
MgmtEth 0/ RSP0 RP0 /CPU0/0 is up
Status of the interface.
if_handle
Internal interface handle.
Forwarding is enabled
Indicates that Cisco Express Forwarding (CEF) is enabled.
ICMP redirects are always sent or never sent
Indicates whether ICMP4 redirect messages should be sent. By default, ICMP redirect messages are always sent.
IP MTU
Value of the IPv4 MTU5 size set on the interface.
Reference count
Internal reference counter.
4 ICMP = internet control message protocol5 MTU = maximum transmission unitshow cef ipv4 interface bgp-policy-statistics
To display IPv4 Cisco Express Forwarding (CEF)-related Border Gateway Protocol (BGP) policy statistics information for an interface, use the show cef ipv4 interface bgp-policy-statistics command in EXEC mode.
show cef [ vrf vrf-name ] ipv4 interface type interface-path-id bgp-policy-statistics [ location node-id ]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
type
Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or virtual interface.
Note Use the show interfaces command to see a list of all interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
location node-id
(Optional) Displays IPv4 CEF-related information for an interface. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
This command is not supported on ASR 9000 Ethernet Line Cards. This command displays all the configured BGP policy counters for the specified interface.
Task ID
Examples
The following is sample output from the show cef ipv4 interface bgp-policy-statistics command:
RP/0/RSP0/CPU0:router# show cef ipv4 interface TenGigE 0/2/0/4 bgp-policy-statistics TenGigE0/2/0/4 is up Input BGP policy accounting on src IP address enabled buckets packets bytes 0 184054 10157753 6 65688590 4204069760 7 65688590 4204069760 8 65688654 4204073856 9 65688656 4204073984 10 65688655 4204073920 30 32844290 1510837340 31 32844291 1510837386 32 32844294 1510837524 33 32844296 1510837616 34 32844298 1510837708 35 32844302 1510837892 36 32844302 1510837892 37 32844303 1510837938 38 32844305 1510838030 39 32844307 1510838122 Output BGP policy accounting on dst IP address enabled buckets packets bytes 0 754 43878 Output BGP policy accounting on src IP address enabled buckets packets bytes 0 857 51706
This table describes the significant fields shown in the display.
Table 11 show cef ipv4 interface bgp-policy-statistics Command Field DescriptionsField
Description
TenGigE 0/2/0/4 is up
Status of the interface.
Input BGP policy accounting on src IP address enabled
Enabled BGP policy accounting features.
buckets
Traffic index.
packets
Number of packets counted in the bucket.
bytes
Number of bytes counted in the bucket.
show cef ipv4 non-recursive
To display the IPv4 nonrecursive prefix entries in the IPv4 Cisco Express Forwarding (CEF) table, use the show cef ipv4 non-recursive command in EXEC mode.
show cef [ vrf vrf-name ] ipv4 non-recursive [detail] [ hardware { egress | ingress } ] [ interface-type interface-instance ] [ location node-id ]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
detail
(Optional) Displays detailed information about nonrecursive prefix entries in the IPv4 CEF table.
hardware
(Optional) Displays detailed information about hardware.
egress
(Optional) Displays egress packet switch exchange (PSE).
ingress
(Optional) Displays ingress packet switch exchange (PSE).
interface-type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface-instance
(Optional) Either a physical interface instance or a virtual interface instance:
- Physical interface instance. Naming notation is rack/slot/module/port and a slash mark between values is required as part of the notation.
- rack: Chassis number of the rack.
- slot: Physical slot number of the line card.
- module: Module number. A physical layer interface module (PLIM) is always 0.
- port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route processor card, the physical slot number is alphanumeric ( RSP0 RP0 or RP1 ) and the module is CPU0. Example: interface MgmtEth0/ RSP0 RP1 /CPU0/0.
- Virtual interface instance. Number range varies depending on interface type.
For more information about the syntax for the router, use the question mark (?) online help function.
location node-id
(Optional) Displays the IPv4 nonrecursive prefix entries in the IPv4 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, the output displays the IPv4 CEF nonrecursive routes for the node on which the command is issued.
Task ID
Examples
The following is sample output from the show cef ipv4 non-recursive command:
RP/0/RSP0/CPU0:routerrouter# show cef ipv4 non-recursive Prefix Next Hop Interface 0.0.0.0/0 1012.8.0.1 0.0.0.0/32 broadcast 10.8.0.0/16 attached MgmtEth0/0/CPU0/0 10.8.0.0/32 broadcast MgmtEth0/0/CPU0/0 10.8.0.1/32 12.8.0.1 MgmtEth0/0/CPU0/0 10.8.0.2/32 12.8.0.2 MgmtEth0/0/CPU0/0 10.8.0.3/32 12.8.0.3 MgmtEth0/0/CPU0/0 10.8.16.10/32 12.8.16.10 MgmtEth0/0/CPU0/0 10.8.16.30/32 12.8.16.30 MgmtEth0/0/CPU0/0 10.8.16.40/32 12.8.16.40 MgmtEth0/0/CPU0/0 10.8.28.8/32 12.8.28.8 MgmtEth0/0/CPU0/0 10.8.28.101/32 12.8.28.101 MgmtEth0/0/CPU0/0 10.8.28.103/32 12.8.28.103 MgmtEth0/0/CPU0/0 10.8.28.104/32 12.8.28.104 MgmtEth0/0/CPU0/0 10.8.28.106/32 receive MgmtEth0/0/CPU0/0 10.8.29.113/32 12.8.29.113 MgmtEth0/0/CPU0/0 10.8.29.118/32 12.8.29.118 MgmtEth0/0/CPU0/0 10.8.29.140/32 12.8.29.140 MgmtEth0/0/CPU0/0 10.8.33.101/32 12.8.33.101 MgmtEth0/0/CPU0/0 10.8.33.103/32 12.8.33.103 MgmtEth0/0/CPU0/0 10.8.33.105/32 12.8.33.105 MgmtEth0/0/CPU0/0 10.8.33.110/32 12.8.33.110 MgmtEth0/0/CPU0/0 10.8.57.1/32 12.8.57.1 MgmtEth0/0/CPU0/0 10.8.255.255/32 broadcast MgmtEth0/0/CPU0/0 10.29.31.2/32 12.29.31.2 MgmtEth0/0/CPU0/0 10.255.0.0/16 attached MgmtEth0/0/CPU0/0 10.255.254.254/32 10223.255.254.254 MgmtEth0/0/CPU0/0 10.0.0.0/4 0.0.0.0 10.0.0.0/24 receive 255.255.255.255/32 broadcastshow cef ipv4 resource
To display the IPv4 nonrecursive prefix entries in the IPv4 Cisco Express Forwarding (CEF) table, use the show cef ipv4 resource command in EXEC mode.
Syntax Description
detail
(Optional) Displays detailed information resources listed in the IPv4 CEF table.
hardware
(Optional) Displays detailed information about hardware.
egress
(Optional) Displays egress packet switch exchange (PSE).
ingress
(Optional) Displays ingress packet switch exchange (PSE).
location node-id
(Optional) Displays the IPv4 resource entries in the IPv4 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, the output displays the IPv4 CEF nonrecursive routes for the node on which the command is issued.
Task ID
Examples
The following is sample output from the show cef ipv4 resource command:
RP/0/RSP0/CPU0:router# show cef ipv4 resource detail CEF resource availability summary state: GREEN ipv4 shared memory resource: CurrMode GREEN, CurrUtil 0% CurrAvail 1874526208 bytes, MaxAvail 1875693568 bytes ipv6 shared memory resource: CurrMode GREEN, CurrUtil 0% CurrAvail 1874591744 bytes, MaxAvail 1875365888 bytes mpls shared memory resource: CurrMode GREEN, CurrUtil 0% CurrAvail 1874407424 bytes, MaxAvail 1875038208 bytes common shared memory resource: CurrMode GREEN, CurrUtil 0% CurrAvail 1873215488 bytes, MaxAvail 1874972672 bytes TABLE hardware resource: GREEN LEAF hardware resource: GREEN LOADINFO hardware resource: GREEN NHINFO hardware resource: GREEN LABEL_INFO hardware resource: GREEN IDB hardware resource: GREEN FRR_NHINFO hardware resource: GREEN LDSH_ARRAY hardware resource: GREEN RSRC_MON hardware resource: GREENshow cef ipv4 summary
To display a summary of the IPv4 Cisco Express Forwarding (CEF) table, use the show cef ipv4 summary command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
location node-id
(Optional) Displays a summary of the IPv4 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command displays a summary of the IPv4 CEF table for the node on which the command is issued.
Task ID
Examples
The following sample output is from the show cef ipv4 summary command:
RP/0/RSP0/CPU0:router# show cef ipv4 summary Router ID is 10 0 .0.0.0 IP CEF with switching (Table Version 0) Load balancing: L3 Tableid 0xe0000000, Vrfid 0x60000000, Vrid 0x20000000, Flags 0x301 Vrfname default, Refcount 367 193 routes, 0 reresolve, 0 unresolved (0 old, 0 new), 13896 bytes 204 load sharing elements, 51904 bytes, 154 references 17 shared load sharing elements, 5536 bytes 187 exclusive load sharing elements, 46368 bytes 0 CEF route update drops, 175 revisions of existing leaves Resolution Timer: 15s 0 prefixes modified in place 0 deleted stale prefixes 16 prefixes with label imposition, 51 prefixes with label information Adjacency Table has 44 adjacencies 1 incomplete adjacency
This table describes the significant fields shown in the display.
Table 13 show cef ipv4 summary Command Field DescriptionsField
Description
Load balancing
Current load-balancing mode. The default value is L3.
Table Version
Version of the CEF table.
tableid
Table identification number.
vrfid
VPN routing and forwarding (VRF) identification (vrfid) number.
vrfname
VRF name.
vrid
Virtual router identification (vrid) number.
flags
Option value for the table
routes
Total number of routes.
reresolve
Total number of routes being reresolved.
unresolved (x old, x new)
Number of routes not yet resolved.
load sharing elements
Total number of internal load-sharing data structures.
bytes
Total memory used by internal load sharing data structures.
references
Total reference count of all internal load sharing data structures.
CEF resets
Number of CEF table resets.
revisions of existing leaves
Number of updates to existing prefixes.
Exponential (currently xs, peak xs)
Currently not used.
prefixes modified in place
Prefixes modified in place.
Adjacency Table has x adjacencies
Total number of adjacencies.
x incomplete adjacency
Total number of incomplete adjacencies.
show cef ipv4 unresolved
To display unresolved routes in the IPv4 Cisco Express Forwarding (CEF) table, use the show cef ipv4 unresolved command in EXEC mode.
show cef [ vrf vrf-name ] ipv4 unresolved [detail] [ hardware { egress | ingress } ] [ location node-id ]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
detail
(Optional) Displays detailed information unresolved routes listed in the IPv4 CEF table.
hardware
(Optional) Displays detailed information about hardware.
egress
(Optional) Displays egress packet switch exchange (PSE).
ingress
(Optional) Displays ingress packet switch exchange (PSE).
location node-id
(Optional) Displays the unresolved routes in the IPv4 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, the output displays the unresolved routes for the node on which the command is issued.
Task ID
Examples
The following is sample output from the show cef ipv4 unresolved command when an unresolved route is detected:
RP/0/RSP0/CPU0:router# show cef ipv4 unresolved Prefix Next Hop Interface 10.3.3.3 102.2.2.2 ?
This table describes the significant fields shown in the display.
Table 14 show cef ipv4 unresolved Command Field DescriptionsField
Description
Prefix
Prefix of the unresolved CEF.
Next Hop
Next hop of the unresolved CEF.
Interface
Next hop interface. A question mark (?) indicates that the interface has not been resolved.
show cef ipv6
To display the IPv6 Cisco Express Forwarding (CEF) table, use the show cef ipv6 command in EXEC mode.
show cef [ vrfvrf-name] ipv6[ interface-type interface-number | ipv6-prefix/ prefix-length] [ detail] [ locationnode-id]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
interface-type interface-number
(Optional) IPv6 prefixes going through the specified next hop interface.
ipv6-prefix/prefix-length
(Optional) Longest prefix entry in the CEF table matching the specified IPv6 prefix and prefix length.
detail
(Optional) Displays detailed IPv6 CEF table information.
location node-id
(Optional) Displays the IPv6 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command displays the IPv6 CEF table for the node on which the command is issued.
Task ID
Examples
The following sample output is from the show cef ipv6 command:
RP/0/RSP0/CPU0:router# show cef ipv6 ::/0 ::/128 drop ::1/128 loopback 66::4/128 receive Loopback0 2222::/64 connected gigabitethernet0/4/0/0 2222::1/128 receive gigabitethernet0/4/0/0 3333::/64 connected gigabitethernet0/3/0/0 3333::2/128 receive gigabitethernet0/3/0/0 5656::2/128 recursive fe80::3031:48ff:fe53:5533, gigabitethernet0/3/0/0 7777::/64 connected gigabitethernet0/0/0/0 7777::2/128 receive gigabitethernet0/0/0/0 9999::1/128 recursive fe80::205:5fff:fe1d:7600, gigabitethernet0/4/0/0 ff00::/8 drop ff02::1/128 receive ff02::2/128 receive ff02::5/128 receive ff02::6/128 receive ff02::1:ff00:0/104 receive
This table describes the significant fields shown in the display.
Table 15 show cef ipv6 Command Field DescriptionsField
Description
drop
Indicates that packets sent to the destination prefix are dropped.
loopback
Indicates that the prefix points to a loopback address. Packets sent to loopback addresses are dropped.
receive
Indicates that the prefix is configured on one of the router interfaces. Packets sent to those prefixes are received by the router.
connected
Indicates that the prefix points to a directly connected next-hop interface.
recursive
Indicates that the prefix is not directly connected but is reachable through the next-hop prefix displayed.
The following sample output is from the show cef ipv6 with the detail keyword:
RP/0/RSP0/CPU0:router# show cef ipv6 detail ::/0 flags: source_rib Loadinfo owner: <this route> fast adj: glean path 1: flags : next hop : :: interface : gigabitethernet0 /0/0/0 ::/128 flags: drop, source_fib Loadinfo owner: <this route> fast adj: drop path 1: flags : next hop : :: interface : <not specified> ::1/128 flags: loopback, source_fib Loadinfo owner: <this route> fast adj: loopback path 1: flags : next hop : :: interface : <not specified> 66::4/128 flags: receive, source_rib Loadinfo owner: <this route> fast adj: receive path 1: flags : point-to-point next hop : :: interface : Loopback0
This table describes the significant output fields shown in the display.
Table 16 show cef ipv6 detail Command Field DescriptionsField
Description
flags:
Properties of the indicated prefix.
Loadinfo owner:
Owner of the Loadinfo used by the prefix for forwarding. The Loadinfo owner is the prefix that owns the array of pointers to adjacencies.
fast adj:
Cached adjacency used for forwarding.
path 1:
The following three items are displayed below path 1:
show cef ipv6 adjacency
To display Cisco Express Forwarding (CEF) IPv6 adjacency status and configuration information, use the show cef ipv6 adjacency command in EXEC mode.
show cef [ vrf vrf-name ] ipv6 adjacency [ interface-type interface-path-id ] [ location node-id ] [detail] [discard] [glean] [null] [punt] [remote]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
interface-type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface- path-id
(Optional) Either a physical interface instance or a virtual interface instance:
- Physical interface instance. Naming notation is rack/slot/module/port and a slash mark between values is required as part of the notation.
- rack: Chassis number of the rack.
- slot: Physical slot number of the line card.
- module: Module number. A physical layer interface module (PLIM) is always 0.
- port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route processor card, the physical slot number is alphanumeric ( RSP0 RP0 or RP1 ) and the module is CPU0. Example: interface MgmtEth0/ RSP0 RP1 /CPU0/0.
- Virtual interface instance. Number range varies depending on interface type.
For more information about the syntax for the router, use the question mark (?) online help function.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
detail
(Optional) Displays the detailed adjacency information.
discard
(Optional) Filters out and displays only the discarded adjacency information.
glean
(Optional) Filters out and displays only the glean adjacency information.
null
(Optional) Filters out and displays only the null adjacency information.
punt
(Optional) Filters out and displays only the punt adjacency information.
remote
(Optional) Filters out and displays only the remote adjacency information.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command displays the CEF adjacency table for the node on which the command is issued.
Task ID
Examples
The following sample output is from the show cef ipv6 adjacency command:
RP/0/RSP0/CPU0:router# show cef ipv6 adjacencyThis is a sample output from the show cef ipv6 adjacency remote detail command:RP/0/RSP0/CPU0:router# show cef ipv6 adjacency remote detail location 0/3/CPU0 Display protocol is ipv6 Interface Address Type Refcount Te0/2/0/3 Ifhandle: 0x8000240 remote 2 Adjacency: PT:0xa1bed9e4 Interface: Te0/2/0/3 Interface Type: 0x0, Base Flags: 0x0 (0xa55f3114) Nhinfo PT: 0xa55f3114, Idb PT: 0xa2d850d8, If Handle: 0x8000240 Ancestor If Handle: 0x0 tt103 Ifhandle: 0x120 remote 1 no next-hop adj Interface: NULLIFHNDL tunnel adjacency Interface Type: 0x24, Base Flags: 0x200 (0xa61ddc30) Nhinfo PT: 0xa61ddc30, Idb PT: 0xa2d851d8, If Handle: 0x120 Ancestor If Handle: 0x0 tt2993 Ifhandle: 0xf9a0 remote 1 no next-hop adj Interface: NULLIFHNDL tunnel adjacency Interface Type: 0x24, Base Flags: 0x200 (0xa65634f0) Nhinfo PT: 0xa65634f0, Idb PT: 0xa2d94a58, If Handle: 0xf9a0 Ancestor If Handle: 0x0 tt2994 Ifhandle: 0xf9e0 remote 1 no next-hop adj Interface: NULLIFHNDL tunnel adjacency Interface Type: 0x24, Base Flags: 0x200 (0xa65641e0) Nhinfo PT: 0xa65641e0, Idb PT: 0xa2d94a98, If Handle: 0xf9e0 Ancestor If Handle: 0x0 tt2995 Ifhandle: 0xfa20 remote 1 no next-hop adj Interface: NULLIFHNDL tunnel adjacency Interface Type: 0x24, Base Flags: 0x200 (0xa6564350) Nhinfo PT: 0xa6564350, Idb PT: 0xa2d94ad8, If Handle: 0xfa20 Ancestor If Handle: 0x0show cef ipv6 adjacency hardware
To display Cisco Express Forwarding (CEF) IPv6 adjacency hardware status and configuration information, use the show cef ipv6 adjacency hardware command in EXEC mode.
show cef [ vrf vrf-name ] ipv6 adjacency hardware { egress | ingress } [ detail | discard | drop | glean | location node-id | null | punt | remote ]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
egress
Displays information from the egress packet switch exchange (PSE) file.
ingress
Displays information from the ingress packet switch exchange (PSE) file.
detail
(Optional) Displays full details.
discard
(Optional) Displays the discard adjacency information.
drop
(Optional) Displays the drop adjacency information.
glean
(Optional) Displays the glean adjacency information.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
null
(Optional) Displays the null adjacency information.
punt
(Optional) Displays the punt adjacency information.
remote
(Optional) Displays the remote adjacency information.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
show cef ipv6 drops
To display IPv6 Cisco Express Forwarding (CEF) table packet drop counters, use the show cef ipv6 drops command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
location node-id
(Optional) Displays IPv6 CEF table packet drop counters for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
A packet might be dropped by the IPv6 CEF table because of unresolved CEF entries, unsupported features, absence of route information, absence of adjacency information, or an IP checksum error.
If you do not specify a node with the location keyword and node-id argument, this command displays the packet drops for all nodes.
Note
Because no hardware forwarding occurs on the route processor (RP), no packet drop information is displayed for that node.
Task ID
Examples
The following is sample output from the show cef ipv6 drops command:
RP/0/RSP0/CPU0:router# show cef ipv6 drops location 0/2/CPU0 IPv6 CEF Drop Statistics Line status down ingress : 0 egress : Not Applicable Packet sanity fail ingress : 0 egress : 0 PLU set to drop ingress : 0 egress : 0 Unknown type,plu drop ingress : 0 egress : 0 Packet length err ingress : 0 egress : 0 TCAM src-comp err ingress : 0 egress : 0
This table describes the significant fields shown in the display.
Table 17 show cef ipv6 drop Command Field DescriptionsField
Description
Line status down
Packet drops due to the line protocol of the incoming interface being down.
Packet sanity fail
Packet drops due to the prefix failing the IPv6 sanity test. The sanity test verifies that the IPv6 packet is valid.
PLU set to drop
Packet drops due the IPv6 destination prefix being set to drop.
Unknown type, plu drop
Packet drops due to the prefix being of an unknown type.
Packet length errs
Length specified in the header does not match the actual length of the packet received.
TCAM src-comp err
Packet drops due to source compression errors that have occurred in the hardware.
show cef ipv6 exact-route
To display the path an IPv6 flow comprising a source and destination address would take, use the show cef ipv6 exact-route command in EXEC mode.
show cef [ vrf vrf-name ]ipv6 exact-route { source-address destination-address } [protocol name][ source-port] [destination-port] [ingress-interface type interface-path-id ][ policy-class value][detail | location node-id]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
source-address
The IPv6 source address in x:x::x format.
destination-address
The IPv6 destination address in x:x::x format.
protocol protocol name
(Optional) Displays the specified protocol for the route.
source-port source-port
(Optional) Sets the UDP source port. The range is from 0 to 65535.
destination-port destination-port
(Optional) Sets the UDP destination port. The range is from 0 to 65535.
ingress-interface
(Optional) Sets the ingress interface.
type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or virtual interface.
Note Use the show interfaces command to see a list of all interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
policy-class value
(Optional) Displays the class for the policy-based tunnel selection. The range for the tunnel policy class value is from 1 to 7.
detail
(Optional) Displays full CEF entry information.
location node-id
(Optional) Displays the IPv6 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If the Layer 4 information is enabled, the source-port, destination-port, protocol, and ingress-interface fields are required. Otherwise, the output of the show cef ipv6 exact-route command is not correct.
Task ID
show cef ipv6 exceptions
To display IPv6 Cisco Express Forwarding (CEF) exception packet counters, use the show cef ipv6 exceptions command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
location node-id
(Optional) Displays IPv6 CEF exception packet counters for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
CEF exception packets are those packets that have been sent from the hardware to the software because they require additional handling. The types of IPv6 CEF exception packets are displayed in the output of show cef ipv6 exceptions.
If you do not specify a node with location keyword and node-id argument, this command displays IPv6 CEF exception packet counters for all nodes.
Task ID
Examples
The following is sample output from the show cef ipv6 exceptions command:
RP/0/RSP0/CPU0:router# show cef ipv6 exceptions location 0/3/CPU0 IPv6 CEF Exception Statistics Node: 0/3/CPU0 TTL err ingress : 0 egress : Not Applicable Link-local dst addr ingress : 0 egress : 0 Hop-by-Hop header ingress : 0 egress : 0 PLU entry set to punt ingress : 0 egress : 0 Packet too big ingress : Not Applicable egress : 0 Med priority punt ingress : 0 egress : Not Applicable
This table describes the significant fields shown in the display.
Table 18 show cef ipv6 exceptions Command Field DescriptionsField
Description
TTL err
Packets sent to software for processing because the packet header of the IPv6 prefix had a TTL6 error.
Link-local dst addr
Packets sent to the software for processing because the destination address of the IPv6 prefix is link local.
Hop-by-Hop header
Packets sent to the software for processing because the IPv6 packet has a hop-by-hop header.
PLU entry set to punt
Packets sent to software for processing because the IPv6 prefix is set to punt.
Packet too big
Packets sent to the software for processing because the packet size exceeded the MTU7.
Med priority punt
Field used internally for troubleshooting.
6 TTL = time to live7 MTU = maximum transmission unitshow cef ipv6 hardware
To display Cisco Express Forwarding (CEF) IPv6 hardware status and configuration information, use the show cef ipv6 hardware command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
egress
Displays information from the egress packet switch exchange (PSE) file.
ingress
Displays information from the ingress packet switch exchange (PSE) file.
detail
(Optional) Displays full details.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following sample output displays the full details from the show cef ipv6 hardware command:
RP/0/RSP0/CPU0:router# show cef ipv6 hardware egress detail ::/0, version 0, proxy default, default route handler, drop adjacency, internal Prefix Len 0, traffic index 0, precedence routine (0) gateway array (0x0) reference count 1, flags 0x4000, source 4, [0 type 3 flags 0x109000 (0x7895114c) ext 0x0 (0x0)] LW-LDI[type=3, refc=1, ptr=0x78a7d0dc, sh-ldi=0x7895114c] via point2point, 0 dependencies, weight 0, class 0 next hop point2point drop adjacency Load distribution: 0 (refcount 0) Hash OK Interface Address 0 Y Unknown drop ff02::/16, version 0, receive Prefix Len 16 ff02::2/128, version 0, receive Prefix Len 128 ff02::1:ff00:0/104, version 0, receive Prefix Len 104show cef ipv6 interface
To display IPv6 Cisco Express Forwarding (CEF)-related information for an interface, use the show cef ipv6 interface command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
type
Interface type. For more information, use the question mark (?) online help function.
interface-path-id
Physical interface or virtual interface.
Note Use the show interfaces command to see a list of all interfaces currently configured on the router.
For more information about the syntax for the router, use the question mark (?) online help function.
detail
(Optional) Displays detailed CEF information for all the interfaces on the node in which the command is issued.
location node-id
(Optional) Displays IPv4 CEF-related information for an interface. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, the show cef ipv6 interface command displays the CEF-related information for the interface on the route processor.
Task ID
show cef ipv6 non-recursive
To display the IPv6 nonrecursive prefix entries in the IPv6 Cisco Express Forwarding (CEF) table, use the show cef ipv6 non-recursive command in EXEC mode.
show cef [ vrf vrf-name ] ipv6 non-recursive [ hardware { egress | ingress } ] [detail] [ location node-id ]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
hardware
(Optional) Displays Cisco Express Forwarding (CEF) IPv6 hardware status and configuration information.
egress
(Optional) Displays information from the egress packet switch exchange (PSE) file.
ingress
(Optional) Displays information from the ingress packet switch exchange (PSE) file.
detail
(Optional) Displays full details.
location node-id
(Optional) Displays the nonrecursive prefix entries in the IPv6 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command displays the nonrecursive routes for the node on which the command is issued.
Task ID
Examples
The following is sample output from the show cef ipv6 non-recursive command:
RP/0/RSP0/CPU0:router# show cef ipv6 non-recursive ::/0 ::/128 drop ::1/128 loopback 66::4/128 receive Loopback0 2222::/64 connected gigabitethernet0/4/0/0 2222::1/128 receive gigabitethernet0/4/0/0 3333::/64 connected gigabitethernet0/3/0/0 3333::2/128 receive gigabitethernet0/3/0/0 7777::/64 connected gigabitethernet0/0/0/0 7777::2/128 receive gigabitethernet0/0/0/0 ff00::/8 drop ff02::1/128 receive ff02::2/128 receive ff02::5/128 receive ff02::6/128 receive ff02::1:ff00:0/104 receive
This table describes the significant fields shown in the display.
Table 19 show cef ipv6 non-recursive Command Field DescriptionsField
Description
drop
Indicates that packets sent to the destination prefix are dropped.
loopback
Indicates that the prefix points to a loopback address. Packets sent to loopback addresses are dropped.
receive
Indicates that the prefix is configured on one of the router interfaces. Packets sent to those prefixes are received by the router.
connected
Indicates that the prefix points to a directly connected next-hop interface.
show cef ipv6 resource
To display the IPv6 nonrecursive prefix entries in the IPv6 Cisco Express Forwarding (CEF) table, use the show cef ipv6 resource command in EXEC mode.
Syntax Description
detail
(Optional) Displays detailed information resources listed in the IPv6 CEF table.
hardware
(Optional) Displays Cisco Express Forwarding (CEF) IPv6 hardware status and configuration information.
egress
(Optional) Displays information from the egress packet switch exchange (PSE) file.
ingress
(Optional) Displays information from the ingress packet switch exchange (PSE) file.
location node-id
(Optional) Displays the IPv6 resource entries in the IPv6 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, the output displays the IPv6 CEF nonrecursive routes for the node on which the command is issued.
Task ID
Examples
The following is sample output from the show cef ipv6 resource command:
RP/0/RSP0/CPU0:router# show cef ipv6 resource CEF resource availability summary state: GREEN ipv4 shared memory resource: GREEN ipv6 shared memory resource: GREEN mpls shared memory resource: GREEN common shared memory resource: GREEN TABLE hardware resource: GREEN LEAF hardware resource: GREEN LOADINFO hardware resource: GREEN NHINFO hardware resource: GREEN LABEL_INFO hardware resource: GREEN IDB hardware resource: GREEN FRR_NHINFO hardware resource: GREEN LDSH_ARRAY hardware resource: GREEN RSRC_MON hardware resource: GREENshow cef ipv6 summary
To display a summary of the IPv6 Cisco Express Forwarding (CEF) table, use the show cef ipv6 summary command in EXEC mode.
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
location node-id
(Optional) Displays a summary of the IPv6 CEF table for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command displays a summary of the IPv6 CEF table for the node on which the command is issued.
Task ID
Examples
The following is sample output from the show cef ipv6 summary command:
RP/0/RSP0/CPU0:router# show cef ipv6 summary IP CEF with switching (Table Version 0) Load balancing: L3 Tableid 0xe0800000, Vrfid 0x60000000, Vrid 0x20000000, Flags 0x301 Vrfname default, Refcount 12 4 routes, 0 reresolve, 0 unresolved (0 old, 0 new), 288 bytes 0 load sharing elements, 0 bytes, 0 references 0 shared load sharing elements, 0 bytes 0 exclusive load sharing elements, 0 bytes 0 CEF route update drops, 0 revisions of existing leaves Resolution Timer: 15s 0 prefixes modified in place 0 deleted stale prefixes 0 prefixes with label imposition, 0 prefixes with label information Adjacency Table has 44 adjacencies 1 incomplete adjacency
This table describes the significant fields shown in the display.
Table 20 show cef ipv6 summary Command Field DescriptionsField
Description
Load balancing
Current load-balancing mode. The default value is L3.
Table Version
Version of the CEF table.
routes
Total number of routes.
unresolved (x old, x new)
Number of routes not yet resolved.
load sharing elements
Total number of internal load-sharing data structures.
bytes
Total memory used by internal load sharing data structures.
references
Total reference count of all internal load sharing data structures.
CEF resets
Number of CEF table resets.
revisions of existing leaves
Number of updates to existing prefixes.
Exponential (currently xs, peak xs)
Currently not used.
prefixes modified in place
Prefixes modified in place.
Router ID
Router identification.
Adjacency Table has x adjacencies
Total number of adjacencies.
x incomplete adjacency
Total number of incomplete adjacencies.
show cef ipv6 unresolved
To display the unresolved routes in the IPv6 Cisco Express Forwarding (CEF) table, use the show cef ipv6 unresolved command in EXEC mode.
show cef [ vrf vrf-name ] ipv6 unresolved [detail] [ hardware { egress | ingress } ] [ location node-id ]
Syntax Description
vrf
(Optional) Displays VPN routing and forwarding (VRF) instance information.
vrf-name
(Optional) Name of a VRF.
detail hardware
(Optional) Displays full details.
(Optional) Displays Cisco Express Forwarding (CEF) IPv6 hardware status and configuration information.
hardware egress
(Optional) Displays Cisco Express Forwarding information from the egress packet switch exchange ( CEF PSE ) IPv6 hardware status and configuration information file .
egress ingress
(Optional) Displays information from the egress ingress packet switch exchange (PSE) file.
ingress detail
(Optional) Displays information from the ingress packet switch exchange (PSE) file full details .
location node-id
(Optional) Displays the unresolved routes in the IPv6 CEF table for the specified node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, this command displays the unresolved routes for the node on which the command is issued.
Task ID
show cef mpls adjacency
To display the Multiprotocol Label Switching (MPLS) adjacency table, use the show cef mpls adjacency command in EXEC mode.
show cef mpls adjacency [ interface-type interface-path-id ] [ detail | discard | drop | glean | null | punt | remote ] [ location node-id ]
Syntax Description
interface-type
(Optional) Interface type. For more information, use the question mark (?) online help function.
interface- path-id
(Optional) Either a physical interface instance or a virtual interface instance:
- Physical interface instance. Naming notation is rack/slot/module/port and a slash mark between values is required as part of the notation.
- rack: Chassis number of the rack.
- slot: Physical slot number of the line card.
- module: Module number. A physical layer interface module (PLIM) is always 0.
- port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route processor card, the physical slot number is alphanumeric ( RSP0 RP0 or RP1 ) and the module is CPU0. Example: interface MgmtEth0/ RSP0 RP1 /CPU0/0.
- Virtual interface instance. Number range varies depending on interface type.
For more information about the syntax for the router, use the question mark (?) online help function.
detail
(Optional) Displays full details.
discard
(Optional) Displays the discard adjacency information.
drop
(Optional) Displays the drop adjacency information.
glean
(Optional) Displays the glean adjacency information.
null
(Optional) Displays the null adjacency information.
punt
(Optional) Displays the punt adjacency information.
remote
(Optional) Displays the remote adjacency information.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, the show cef mpls adjacency command displays the MPLS adjacency table for the node in which the command is issued.
Task ID
Examples
This following is sample output from show cef mpls adjacency command:
RP/0/RSP0/CPU0:router# show cef mpls adjacencyRelated Commands
Command
Description
Displays the Multiprotocol Label Switching (MPLS) adjacency hardware status and configuration information.
Displays the Multiprotocol Label Switching (MPLS) Cisco Express Forwarding (CEF)-related information for an interface.
Displays the Multiprotocol Label Switching (MPLS) unresolved routes.
show cef mpls adjacency hardware
To display the Multiprotocol Label Switching (MPLS) adjacency hardware status and configuration information, use the show cef mpls adjacency hardware command in EXEC mode.
show cef mpls adjacency hardware { egress | ingress } [ detail | discard | drop | glean | location node-id | null | punt | remote ]
Syntax Description
egress
Displays information from the egress packet switch exchange (PSE) file.
ingress
Displays information from the ingress packet switch exchange (PSE) file.
detail
(Optional) Displays full details.
discard
(Optional) Displays the discard adjacency information.
drop
(Optional) Displays the drop adjacency information.
glean
(Optional) Displays the glean adjacency information.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
null
(Optional) Displays the null adjacency information.
punt
(Optional) Displays the punt adjacency information.
remote
(Optional) Displays the remote adjacency information.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
This following is sample output from show cef mpls adjacency hardware command:
RP/0/RSP0/CPU0:router# show cef mpls adjacency hardwareshow cef mpls interface
To display the Multiprotocol Label Switching (MPLS) Cisco Express Forwarding (CEF)-related information for an interface, use the show cef mpls interface command in EXEC mode.
Syntax Description
type
Interface type. For more information, use the question mark (?) online help function.
in terface-path-id
Either a physical interface instance or a virtual interface instance as follows:
- Physical interface instance. Naming notation is rack/slot/module/port and a slash between values is required as part of the notation.
- rack: Chassis number of the rack.
- slot: Physical slot number of the modular services card or line card.
- module: Module number. A physical layer interface module (PLIM) is always 0.
- port: Physical port number of the interface.
Note In references to a Management Ethernet interface located on a route processor card, the physical slot number is alphanumeric ( RSP0 RP0 or RP1 ) and the module is CPU0. Example: interface MgmtEth0/ RSP0 RP1 /CPU0/0.
- Virtual interface instance. Number range varies depending on interface type.
For more information about the syntax for the router, use the question mark (?) online help function.
detail
(Optional) Displays detailed CEF information for all the interfaces on the node in which the command is issued.
location node-id
(Optional) Displays IPv4 CEF-related information for an interface. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
If you do not specify a node with the location keyword and node-id argument, the show cef mpls interface command displays the CEF-related information for the interface on the route processor.
Task ID
Examples
The following sample output is from the show cef mpls interface command:
RP/0/RSP0/CPU0:router# show cef mpls interfaceshow cef mpls unresolved
To display the Multiprotocol Label Switching (MPLS) unresolved routes, use the show cef mpls unresolved command in EXEC mode.
Syntax Description
detail
(Optional) Displays detailed adjacency information, including Layer 2 information.
location node-id
(Optional) Displays detailed CEF information for the designated node. The node-id argument is entered in the rack/slot/module notation.
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
Task ID
Examples
The following sample output is from the show cef mpls unresolved command:
RP/0/RSP0/CPU0:router# show cef mpls unresolved Label/EOS Next Hop Interface 20001/0 20001/1Related Commands
Command
Description
Displays the Multiprotocol Label Switching (MPLS) adjacency table.
Displays the Multiprotocol Label Switching (MPLS) adjacency hardware status and configuration information.
Displays the Multiprotocol Label Switching (MPLS) Cisco Express Forwarding (CEF)-related information for an interface.
show cef vrf
To display the contents of the VPN routing and forwarding (VRF) instance, use the show cef vrf command in EXEC mode.
Syntax Description
Command History
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.
To display unresolved routes, you must use the unresolved keyword explicitly.
Task ID
Examples
This following is sample output from show cef vrf command when an unresolved route is detected:
RP/0/RSP0/CPU0:router# show cef vrf 0 Prefix Next Hop Interface 0.0.0.0/0 drop default handler 0.0.0.0/32 broadcast 224.0.0.0/4 0.0.0.0 224.0.0.0/24 receive 255.255.255.255/32 broadcastThis table describes the significant fields shown in the display.
