- Index
- Preface
- Product Overview
- Command-Line Interfaces
- Smart Port Macros
- Virtual Switching Systems (VSS)
- Enhanced Fast Software Upgrade (eFSU)
- Fast Software Upgrades
- Stateful Switchover (SSO)
- Non-Stop Forwarding (NSF)
- RPR Supervisor Engine Redundancy
- Layer 2 LAN Port Configuration
- Flex Links
- EtherChannels
- IEEE 802.1ak MVRP and MRP
- VLAN Trunking Protocol (VTP)
- VLANs
- Private VLANs (PVLANs)
- Private Hosts
- IEEE 802.1Q Tunneling
- Layer 2 Protocol Tunneling
- Spanning Tree Protocols (STP, MST)
- Optional STP Features
- IP Unicast Layer 3 Switching
- Policy Based Routing (PBR)
- Layer 3 Interface Configuration
- Unidirectional Ethernet (UDE) and unidirectional link routing (UDLR)
- Multiprotocol Label Switching (MPLS)
- MPLS VPN Support
- Ethernet over MPLS (EoMPLS)
- IPv4 Multicast Layer 3 Features
- IPv4 Multicast IGMP Snooping
- IPv4 PIM Snooping
- IPv4 Multicast VLAN Registration (MVR)
- IPv4 IGMP Filtering
- IPv4 Router Guard
- IPv4 Multicast VPN Support
- IPv6 Multicast Layer 3 Features
- IPv6 MLD Snooping
- Netflow
- NetFlow Data Export (NDE)
- Call Home
- System Event Archive (SEA)
- Backplane Platform Monitoring
- Local SPAN, RSPAN, and ERSPAN
- SNMP IfIndex Persistence
- Top-N Reports
- Layer 2 Traceroute Utility
- Mini Protocol Analyzer
- PFC QoS
- AutoQoS
- MPLS QoS
- PFC QoS Statistics Data Export
- Cisco IOS ACL Support
- Cisco TrustSec (CTS)
- AutoSecure
- MAC Address-Based Traffic Blocking
- Port ACLs (PACLs)
- VLAN ACLs (VACLs)
- Policy-Based Forwarding (PBF)
- Denial of Service (DoS) Protection
- Control Plane Policing (CoPP)
- Dynamic Host Configuration Protocol (DHCP) Snooping
- IP Source Guard
- Dynamic ARP Inspection (DAI)
- Traffic Storm Control
- Unknown Unicast and Multicast Flood Control
- IEEE 802.1X Port-Based Authentication
- Configuring Web-Based Authentication
- Port Security
- Lawful Intercept
- Online Diagnostic Tests
- Prerequisites for IPv6 Multicast
- Restrictions for IPv6 Multicast
- Features that Support IPv6 Multicast
- How to Configure IPv6 Multicast Layer 3 Switching
- Using show Commands to Verify IPv6 Multicast Layer 3 Switching
- Verifying MFIB Clients
- Displaying the Switching Capability
- Verifying the (S,G) Forwarding Capability
- Verifying the (*,G) Forwarding Capability
- Verifying the Subnet Entry Support Status
- Verifying the Current Replication Mode
- Displaying the Replication Mode Auto-Detection Status
- Displaying the Replication Mode Capabilities
- Displaying Subnet Entries
- Displaying the IPv6 Multicast Summary
- Displaying the NetFlow Hardware Forwarding Count
- Displaying the FIB Hardware Bridging and Drop Counts
- Displaying the Shared and Well-Known Hardware Adjacency Counters
IPv6 Multicast PFC3 and DFC3 Layer 3 Switching
•Prerequisites for IPv6 Multicast
•Restrictions for IPv6 Multicast
•Features that Support IPv6 Multicast
•How to Configure IPv6 Multicast Layer 3 Switching
•Using show Commands to Verify IPv6 Multicast Layer 3 Switching
Note•For complete syntax and usage information for the commands used in this chapter, see these publications:
http://www.cisco.com/en/US/products/ps11846/prod_command_reference_list.html
•Cisco IOS Release 15.1SY supports only Ethernet interfaces. Cisco IOS Release 15.1SY does not support any WAN features or commands.
Tip For additional information about Cisco Catalyst 6500 Series Switches (including configuration examples and troubleshooting information), see the documents listed on this page:
http://www.cisco.com/en/US/products/hw/switches/ps708/tsd_products_support_series_home.html
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Prerequisites for IPv6 Multicast
None.
Restrictions for IPv6 Multicast
•The PFC3 and DFC3 provide hardware support for the following:
–Completely switched IPv6 multicast flows
–IPv6 PIM-Sparse Mode (PIM-SM) (S,G) and (*,G) forwarding
–Multicast RPF check for IPv6 PIM-SM (S,G) traffic using the NetFlow table
–Rate limiting of IPv6 PIM-SM (S,G) traffic that fails the multicast RPF check
–Static IPv6 multicast routes
–SSM Mapping for IPv6 (PIM-SSM)
–IPv6 multicast forwarding information base (MFIB) using the NetFlow table
–IPv6 distributed MFIB (dMFIB) using the NetFlow table
–Link-local and link-global IPv6 multicast scopes
–Egress multicast replication with the ipv6 mfib hardware-switching command
–Ingress interface statistics for multicast routes (egress interface statistics not available)
–RPR redundancy mode (see Chapter 9 "Route Processor Redundancy (RPR)")
–Ingress and egress PFC QoS (see Chapter 58 "PFC QoS")
–Input and output Cisco access-control lists (ACLs)
•The PFC3 and DFC3 do not provide hardware support for the following:
–Partially switched IPv6 multicast flows
–Multicast RPF check for PIM-SM (*,G) traffic
–Multicast helper maps
–Site-local multicast scopes
–Manually configured IPv6 over IPv4 tunnels
–IPv6 multicast 6to4 tunnels
–IPv6 multicast automatic tunnels
–IPv6 over GRE tunnels
–IPv6-in-IPv6 PIM register tunnels
–IPv6 multicast basic ISATAP tunnels
–ISATAP tunnels with embedded 6to4 tunnels
Features that Support IPv6 Multicast
These features support IPv6 multicast:
•RPR redundancy mode—See Chapter 9 "Route Processor Redundancy (RPR)."
•Multicast Listener Discovery version 2 (MLDv2) snooping—See Chapter 47 "IPv6 MLD Snooping."
Note MLDv1 snooping is not supported.
•IPv6 Multicast rate limiters—See Chapter 69 "Denial of Service (DoS) Protection."
•IPv6 Multicast: Bootstrap Router (BSR)—See the BSR information in the Cisco IOS IPv6 Configuration Library and the Cisco IOS IPv6 Command Reference.
•IPv6 Access Services—See DHCPv6 Prefix Delegation—See this publication for more information:
http://www.cisco.com/en/US/docs/ios/12_2t/ipv6/ipv6_vgf.html
•SSM mapping for IPv6—See this publication for more information:
http://www.cisco.com/en/US/docs/ios-xml/ios/ipmulti_pim/configuration/15-sy/ip6-mcast-ssm-map.html
How to Configure IPv6 Multicast Layer 3 Switching
To configure IPv6 multicast Layer 3 switching, perform this task:
Using show Commands to Verify IPv6 Multicast Layer 3 Switching
•Displaying the Switching Capability
•Verifying the (S,G) Forwarding Capability
•Verifying the (*,G) Forwarding Capability
•Verifying the Subnet Entry Support Status
•Verifying the Current Replication Mode
•Displaying the Replication Mode Auto-Detection Status
•Displaying the Replication Mode Capabilities
•Displaying the IPv6 Multicast Summary
•Displaying the NetFlow Hardware Forwarding Count
•Displaying the FIB Hardware Bridging and Drop Counts
•Displaying the Shared and Well-Known Hardware Adjacency Counters
Note The show commands in the following sections are for a switch with a DFC3-equipped switching module in slot 1 and a Supervisor Engine 720 with a PFC3 in slot 6.
Verifying MFIB Clients
This example shows the complete output of the show ipv6 mrib client command:
Router# show ipv6 mrib client
IP MRIB client-connections
mfib ipv6:81 (connection id 0)
igmp:124 (connection id 1)
pim:281 (connection id 2)
slot 1 mfib ipv6 rp agent:15 (connection id 3)
slot 6 mfib ipv6 rp agent:15 (connection id 4)
This example shows how to display the MFIB client running on the route processor (RP):
Router# show ipv6 mrib client | include ^mfib ipv6
mfib ipv6:81 (connection id 0)
This example shows how to display the MFIB clients running on the PFC3 and any DFC3s:
Router# show ipv6 mrib client | include slot
slot 1 mfib ipv6 rp agent:15 (connection id 3)
slot 6 mfib ipv6 rp agent:15 (connection id 4)
Displaying the Switching Capability
This example displays the complete output of the show platform software ipv6-multicast capability command:
Router# show platform software ipv6-multicast capability
Hardware switching for IPv6 is enabled
(S,G) forwarding for IPv6 supported using Netflow
(*,G) bridging for IPv6 is supported using FIB
Directly-connected entries for IPv6 is supported using ACL-TCAM.
Current System HW Replication Mode : Ingress
Auto-detection of Replication Mode : ON
Slot Replication-Capability Replication-Mode
1 Ingress Ingress
2 Egress Ingress
6 Egress Ingress
8 Ingress Ingress
Verifying the (S,G) Forwarding Capability
This example shows how to verify the (S,G) forwarding:
Router# show platform software ipv6-multicast capability | include (S,G)
(S,G) forwarding for IPv6 supported using Netflow
Verifying the (*,G) Forwarding Capability
This example shows how to verify the (*,G) forwarding:
Router# show platform software ipv6-multicast capability | include (\*,G)
(*,G) bridging for IPv6 is supported using FIB
Verifying the Subnet Entry Support Status
This example shows how to verify the subnet entry support status:
Router# show platform software ipv6-multicast capability | include entries
Directly-connected entries for IPv6 is supported using ACL-TCAM.
Verifying the Current Replication Mode
This example shows how to verify the current replication mode:
Router# show platform software ipv6-multicast capability | include Current
Current System HW Replication Mode : Ingress
Note Enter the no ipv6 mfib hardware-switching replication-mode ingress command to enable replication mode auto-detection.
Displaying the Replication Mode Auto-Detection Status
This example shows how to display the replication mode auto-detection status:
Router# show platform software ipv6-multicast capability | include detection
Auto-detection of Replication Mode : ON
Displaying the Replication Mode Capabilities
This example shows how to display the replication mode capabilities of the installed modules:
Router# show platform software ipv6-multicast capability | begin ^Slot
Slot Replication-Capability Replication-Mode
1 Ingress Ingress
2 Egress Ingress
6 Egress Ingress
8 Ingress Ingress
Displaying Subnet Entries
This example shows how to display subnet entries:
Router# show platform software ipv6-multicast connected
IPv6 Multicast Subnet entries
Flags : H - Installed in ACL-TCAM
X - Not installed in ACL-TCAM due to
label-full exception
Interface: Vlan20 [ H ]
S:20::1 G:FF00::
Interface: Vlan10 [ H ]
S:10::1 G:FF00::
Note In this example, there are subnet entries for VLAN 10 and VLAN 20.
Displaying the IPv6 Multicast Summary
This example shows how to display the IPv6 multicast summary:
Router# show platform software ipv6-multicast summary
IPv6 Multicast Netflow SC summary on Slot[1]:
Shortcut Type Shortcut count
---------------------------+--------------
(S, G) 100
(*, G) 0
IPv6 Multicast FIB SC summary on Slot[1]:
Shortcut Type Shortcut count
---------------------------+--------------
(*, G/128) 10
(*, G/m) 47
IPv6 Multicast Netflow SC summary on Slot[6]:
Shortcut Type Shortcut count
---------------------------+--------------
(S, G) 100
(*, G) 0
IPv6 Multicast FIB SC summary on Slot[6]:
Shortcut Type Shortcut count
---------------------------+--------------
(*, G/128) 10
(*, G/m) 47
Displaying the NetFlow Hardware Forwarding Count
This example shows how to display the NetFlow hardware forwarding count:
Router# show platform software ipv6-multicast summary
IPv6 Multicast Netflow SC summary on Slot[1]:
Shortcut Type Shortcut count
---------------------------+--------------
(S, G) 100
(*, G) 0
<...Output deleted...>
IPv6 Multicast Netflow SC summary on Slot[6]:
Shortcut Type Shortcut count
---------------------------+--------------
(S, G) 100
(*, G) 0
<...Output truncated...>
Note The NetFlow (*, G) count is always zero because PIM-SM (*,G) forwarding is supported in software on the RP.
Displaying the FIB Hardware Bridging and Drop Counts
This example shows how to display the FIB hardware bridging and drop hardware counts:
Router# show platform software ipv6-multicast summary | begin FIB
IPv6 Multicast FIB SC summary on Slot[1]:
Shortcut Type Shortcut count
---------------------------+--------------
(*, G/128) 10
(*, G/m) 47
<...Output deleted...>
IPv6 Multicast FIB SC summary on Slot[6]:
Shortcut Type Shortcut count
---------------------------+--------------
(*, G/128) 10
(*, G/m) 47
Note•The (*, G/128) value is a hardware bridge entry count.
•The (*, G/m) value is a hardware bridge/drop entry count.
Displaying the Shared and Well-Known Hardware Adjacency Counters
The show platform software ipv6-multicast shared-adjacencies command displays the shared and well-known hardware adjacency counters used for IPv6 multicast by entries in FIB and ACL-TCAM.
Router# show platform software ipv6-multicast shared-adjacencies
---- SLOT [1] ----
Shared IPv6 Mcast Adjacencies Index Packets Bytes
----------------------------- ------ ------------- ------------------
Subnet bridge adjacency 0x7F802 0 0
Control bridge adjacency 0x7 0 0
StarG_M bridge adjacency 0x8 0 0
S_G bridge adjacency 0x9 0 0
Default drop adjacency 0xA 0 0
StarG (spt == INF) adjacency 0xB 0 0
StarG (spt != INF) adjacency 0xC 0 0
---- SLOT [6] ----
Shared IPv6 Mcast Adjacencies Index Packets Bytes
----------------------------- ------ ------------- ------------------
Subnet bridge adjacency 0x7F802 0 0
Control bridge adjacency 0x7 0 0
StarG_M bridge adjacency 0x8 0 0
S_G bridge adjacency 0x9 0 0
Default drop adjacency 0xA 28237 3146058
StarG (spt == INF) adjacency 0xB 0 0
StarG (spt != INF) adjacency 0xC 0 0
Tip For additional information about Cisco Catalyst 6500 Series Switches (including configuration examples and troubleshooting information), see the documents listed on this page:
http://www.cisco.com/en/US/products/hw/switches/ps708/tsd_products_support_series_home.html
Participate in the Technical Documentation Ideas forum