High Availability Command Reference, Cisco IOS XE Release 3SE (Catalyst 3850 Switches)
show call-home through vrrp sso
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show call-home through vrrp sso

show call-home through vrrp sso

show cef nsf

To show the current Cisco nonstop forwarding (NSF) state of Cisco Express Forwarding on both the active and standby Route Processors (RPs), use the s how cef nsfcommand in privileged EXEC mode.

show cef nsf

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release

Modification

12.0(22)S

This command was introduced.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)S.

12.2(20)S

Support for the Cisco 7304 router was added.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

Command History

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

Usage Guidelines

If you enter the show cef nsf command before a switchover occurs, no switchover activity is reported. After a switchover occurs, you can enter the show cef nsf command to display details about the switchover as reported by the newly active RP. On the Cisco 12000 and 7500 series Internet routers, details about line card switchover are also provided.

Examples

The following example shows the current NSF state:

Router# show cef nsf
Last switchover occurred:        00:01:30.088 ago
 Routing convergence duration:   00:00:34.728
 FIB stale entry purge durations:00:00:01.728 - Default
                                  00:00:00.088 - Red
          Switchover
 Slot    Count   Type   Quiesce Period
 1           2    sso   00:00:00.108
 2           1   rpr+   00:00:00.948
 3           2    sso   00:00:00.152
 5           2    sso   00:00:00.092
 6           1   rpr+   00:00:00.632
 No NSF stats available for the following linecards:4 7

The table below describes the significant fields shown in the display.

Table 1 show cef nsf Field Descriptions

Field

Description

Last switchover occurred

Time since the last system switchover.

Routing convergence duration

Time taken after the switchover before the routing protocol signaled Cisco Express Forwarding that they had converged.

Stale entry purge

Time taken by Cisco Express Forwarding to purge any stale entries in each FIB table. In the example, these are the FIB tables names “Default” and “Red.”

Switchover

Per-line card NSF statistics.

Slot

Line card slot number.

Count

Number of times the line card has switched over. This value will always be 1, unless the type is SSO.

Type

Type of switchover the line card performed last. The type can be SSO, RPR+ or RPR.

Quiesce Period

Period of time when the line card was disconnected from the switching fabric. During this time, no packet forwarding can take place.

Other system restart requirements may add additional delay until the line card can start forwarding packets.

Related Commands

Command

Description

clear ip cef epoch

Begins a new epoch and increments the epoch number for a Cisco Express Forwarding table.

show cef state

Displays the state of Cisco Express Forwarding on a networking device.

show cef state

To display the state of Cisco Express Forwarding on a networking device, use the show cef statecommand in privileged EXEC mode.

show cef state

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC (#)

Command History

Release

Modification

12.0(22)S

This command was introduced on Cisco 7500, 10000, and 12000 series Internet routers.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)S on Cisco 7500 series routers.

12.2(20)S

Support for the Cisco 7304 router was added. The Cisco 7500 series router is not supported in Cisco IOS Release 12.2(20)S.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

12.4(20)T

This command was integrated into Cisco IOS Release 12.4(20)T.

Examples

Examples

The following example shows the state of Cisco Express Forwarding on the active Route Processor (RP):

Router# show cef state
CEF Status:
 RP instance
 common CEF enabled
IPv4 CEF Status:
 CEF enabled/running
 dCEF disabled/not running
 CEF switching enabled/running
 universal per-destination load sharing algorithm, id A189DD49
IPv6 CEF Status:
 CEF enabled/running
 dCEF disabled/not running
 original per-destination load sharing algorithm, id A189DD49

The table below describes the significant fields shown in the display.

Table 2 show cef state Field Description (New)

Field

Description

RP instance

Cisco Express Forwarding status is for the RP.

common CEF enabled

Common Cisco Express Forwarding is enabled.

IPv4 CEF Status

Cisco Express Forwarding mode and status is for IPv4.

universal per-destination load sharing algorithm

IPv4 is using the universal per-destination load sharing algorithm for Cisco Express Forwarding traffic.

IPv6 CEF Status

Cisco Express Forwarding mode and status is for IPV6.

original per-destination load sharing algorithm

IPv6 is using the original per-destination load sharing algorithm for Cisco Express Forwarding traffic.

Examples

The following example shows the state of Cisco Express Forwarding on the active Route Processor (RP):

Router# show cef state
RRP state:   
     I am standby RRP:          no
     RF Peer Presence:          yes
     RF PeerComm reached:       yes
     Redundancy mode:           SSO(7)
     CEF NSF:                   enabled/running

The table below describes the significant fields shown in the display.

Table 3 show cef state Field Descriptions

Field

Description

I am standby RRP: no

This RP is not the standby.

RF Peer Presence: yes

This RP does have RF peer presence.

RF PeerComm reached: yes

This RP has reached RF peer communication.

Redundancy mode: SSO(&)

Type of redundancy mode on this RP.

CEF NSF: enabled/running

States whether Cisco Express Forwarding nonstop forwarding (NSF) is running or not.

The following example shows the state of Cisco Express Forwarding on the standby RP:

Router# show cef state
RRP state:   
     I am standby RRP:          yes
     My logical slot:           0
     RF Peer Presence:          yes
     RF PeerComm reached:       yes
     CEF NSF:                   running

Related Commands

Command

Description

clear ip cef epoch

Begins a new epoch and increments the epoch number for a Cisco Express Forwarding table.

show cef nsf

Displays the current NSF state of Cisco Express Forwarding on both the active and standby RPs.

show ip ospf nsf

To display IP Open Shortest Path First (OSPF) nonstop forwarding (NSF) state information, use the show ip ospf nsf command in user EXEC or privileged EXEC mode.

show ip ospf nsf

Syntax Description

This command has no arguments or keywords.

Command Modes

User EXEC (>) Privileged EXEC (#)

Command History

Mainline Release

Modification

12.2(33)SXI

This command was introduced in a release earlier than Cisco IOS Release 12.2(33)SXI.

12.2(33)SRE

This command was integrated into Cisco IOS Release 12.2(33)SRE.

Examples

The following is sample output from the show ip ospf nsfcommand. The fields are self-explanatory.

Router# show ip ospf
 nsf
Routing Process "ospf 2" 
 Non-Stop Forwarding enabled
 IETF NSF helper support enabled
 Cisco NSF helper support enabled 
 OSPF restart state is NO_RESTART
Handle 1786466308, Router ID 192.0.2.1, checkpoint Router ID 0.0.0.0
Config wait timer interval 10, timer not running
Dbase wait timer interval 120, timer not running

vrrp sso

To enable Virtual Router Redundancy Protocol (VRRP) support of Stateful Switchover (SSO) if it has been disabled, use the vrrp sso command in global configuration mode. To disable VRRP support of SSO, use the no form of this command.

vrrp sso

no vrrp sso

Syntax Description

This command has no arguments or keywords.

Command Default

VRRP support of SSO is enabled by default.

Command Modes

Global configuration (config)

Command History

Release

Modification

12.2(33)SRC

This command was introduced.

Cisco IOS XE Release 2.1

This command was integrated into Cisco IOS XE Release 2.1.

12.2(33)SXI

This command was integrated into Cisco IOS Release 12.2(33)SXI.

Usage Guidelines

Use this command to enable VRRP support of SSO if it has been manually disabled by the no vrrp sso command.

Examples

The following example shows how to disable VRRP support of SSO:

Router(config)# no vrrp sso

Related Commands

Command

Description

debug vrrp all

Displays debugging messages for VRRP errors, events, and state transitions.

debug vrrp ha

Displays debugging messages for VRRP high availability.

show vrrp

Displays a brief or detailed status of one or all configured VRRP groups.