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service-module ip redundancy through show vrrs summary
- service-module ip redundancy
- show glbp
- show standby
- show standby arp gratuitous
- show standby capability
- show standby delay
- show standby internal
- show standby neighbors
- show standby redirect
- show vrrp
- show vrrp interface
- show vrrs
- show vrrs clients
- show vrrs group
- show vrrs plugin database
- show vrrs summary
service-module ip redundancy
To link the primary HSRP interface status to that of the satellite interface, use the service-module ip redundancy command in satellite interface configuration mode. To remove the link between the primary HSRP interface status and the satellite interface status, use the no form of this command.
Command History
Release
Modification
12.3(14)T
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX
This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.
Usage Guidelines
Use the service-module ip redundancy command only when you have two Cisco IP VSAT satellite WAN network modules (NM-1VSAT-GILAT) on separate HSRP-redundant routers that connect to the same outdoor unit (ODU).
This command enables the satellite interface to spoof the line protocol UP state.
Examples
The following example shows how to link the primary HSRP interface status to that of the satellite interface:
Router (config-if)# service-module ip redundancy grp-hsrpRelated Commands
Command
Description
standby ip
Activates HSRP.
standby name
Configures the name of the hot standby group.
standby preempt
Enables preemption on the router and optionally configures a preemption delay.
standby track
Configures an interface so that the hot standby priority changes based on the availability of other interfaces.
show glbp
To display Gateway Load Balancing Protocol (GLBP) information, use the show glbp command in privileged EXEC mode.
capability [ interface-type interface-number ] | [ [ interface-type interface-number [group-number] [state] [brief] [detail] client-cache [ age number ] [ forwarder number ] ] | mac-address address | [summary] ]
Syntax Description
interface-type interface-number
(Optional) Interface type and number for which output is displayed.
group-number
(Optional) GLBP group number in the range from 0 to 1023.
state
(Optional) State of the GLBP router, one of the following: active, disabled, init, listen, and standby.
brief
(Optional) Summarizes each virtual gateway or virtual forwarder with a single line of output.
detail
(Optional) Displays all the status of the GLBP router in detailed format. The available status are: active, disabled, init, listen, speak, and standby.
capability
(Optional) Displays the GLBP capability interfaces.
client-cache
(Optional) Displays the GLBP client cache.
age number
(Optional) Displays the client-cache age in the range from 0 to 1440.
forwarder number
(Optional) Displays the client forwarder in the range from 1 to 4.
mac-address address
(Optional) Displays the mac-address of the client.
summary
(Optional) Displays the summary of the GLBP client caches.
Command History
Release
Modification
12.2(14)S
This command was introduced.
12.2(15)T
This command was integrated into Cisco IOS Release 12.2(15)T. The client-cache keyword was added.
12.3(2)T
The output was enhanced to display information about Message Digest 5 (MD5) authentication.
12.3(7)T
The output was enhanced to display information about assigned redundancy names to specified groups.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(31)SB2
This command was enhanced to display information about GLBP support of Stateful Switchover (SSO) mode.
12.2(33)SXH
This command was integrated into Cisco IOS Release 12.2(33)SXH.
Cisco IOS XE Release 2.1
This command was integrated into Cisco IOS XE Release 2.1.
12.4(15)T
This command was modified. The client-cache keyword was added.
12.4(24)T
This command was modified. The detail keyword was added.
The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
12.2(33)SXI1
This command was modified. The client-cache keyword was added.
The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
12.2(33)SRE
The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
Usage Guidelines
Use the show glbp command to display information about GLBP groups on a router. The brief keyword displays a single line of information about each virtual gateway or virtual forwarder. The client-cache keyword displays the client cache details and the capability keyword displays all GLBP-capable interfaces.
Examples
The following is sample output from the show glbp command:
Router# show glbp FastEthernet0/0 - Group 10 State is Active 2 state changes, last state change 23:50:33 Virtual IP address is 10.21.8.10 Hello time 5 sec, hold time 18 sec Next hello sent in 4.300 secs Redirect time 600 sec, forwarder time-out 7200 sec Authentication MD5, key-string Preemption enabled, min delay 60 sec Active is local Standby is unknown Priority 254 (configured) Weighting 105 (configured 110), thresholds: lower 95, upper 105 Track object 2 state Down decrement 5 Load balancing: host-dependent There is 1 forwarder (1 active) Forwarder 1 State is Active 1 state change, last state change 23:50:15 MAC address is 0007.b400.0101 (default) Owner ID is 0005.0050.6c08 Redirection enabled Preemption enabled, min delay 60 sec Active is local, weighting 105The following is sample output from the show glbp command with the brief keyword specified:
Router# show glbp brief Interface Grp Fwd Pri State Address Active router Standby router Fa0/0 10 - 254 Active 10.21.8.10 local unknown Fa0/0 10 1 7 Active 0007.b400.0101 local -The following is sample output from the show glbp command that displays GLBP group 10:
Router# show glbp 10 FastEthernet0/0 - Group 10 State is Active 2 state changes, last state change 23:50:33 Virtual IP address is 10.21.8.10 Hello time 5 sec, hold time 18 sec Next hello sent in 4.300 secs Redirect time 600 sec, forwarder time-out 7200 sec Authentication MD5, key-string Preemption enabled, min delay 60 sec Active is local Standby is unknown Priority 254 (configured) Weighting 105 (configured 110), thresholds: lower 95, upper 105 Track object 2 state Down decrement 5 Load balancing: host-dependent There is 1 forwarder (1 active) Forwarder 1 State is Active 1 state change, last state change 23:50:15 MAC address is 0007.b400.0101 (default) Owner ID is 0005.0050.6c08 Redirection enabled Preemption enabled, min delay 60 sec Active is local, weighting 105The following output shows that the redundancy name has been assigned to the “glbp1” group:
Router# show glbp ethernet0/1 1 Ethernet0/1 - Group 1 State is Listen 64 state changes, last state change 00:00:54 Virtual IP address is 10.1.0.7 Hello time 50 msec, hold time 200 msec Next hello sent in 0.030 secs Redirect time 600 sec, forwarder time-out 14400 sec Authentication text, string “authword” Preemption enabled, min delay 0 sec Active is 10.1.0.2, priority 105 (expires in 0.184 sec) Standby is 10.1.0.3, priority 100 (expires in 0.176 sec) Priority 96 (configured) Weighting 100 (configured 100), thresholds: lower 95, upper 100 Track object 1 state Up decrement 10 Load balancing: round-robin IP redundancy name is "glbp1" Group members: 0004.4d83.4801 (10.0.0.0) 0010.7b5a.fa41 (10.0.0.1) 00d0.bbd3.bc21 (10.0.0.2) localThe following output shows GLBP support for SSO mode on an active RP:
Router# show glbp Ethernet0/0 - Group 1 State is Standby 1 state change, last state change 00:00:20 Virtual IP address is 172.24.1.254 Hello time 3 sec, hold time 10 sec Next hello sent in 0.232 secs Redirect time 600 sec, forwarder time-out 14400 sec Preemption disabled Active is 172.24.1.2, priority 100 (expires in 7.472 sec) Standby is local Priority 100 (default) Weighting 100 (default 100), thresholds: lower 1, upper 100 Load balancing: round-robin Group members: aabb.cc00.0100 (172.24.1.1) local aabb.cc00.0200 (172.24.1.2) There are 2 forwarders (1 active) Forwarder 1 State is Listen MAC address is 0007.b400.0101 (learnt) Owner ID is aabb.cc00.0200 Time to live: 14397.472 sec (maximum 14400 sec) Preemption enabled, min delay 30 sec Active is 172.24.1.2 (primary), weighting 100 (expires in 9.540 sec) Forwarder 2 State is Active 1 state change, last state change 00:00:28 MAC address is 0007.b400.0102 (default) Owner ID is aabb.cc00.0100 Preemption enabled, min delay 30 sec Active is local, weighting 100The following output shows GLBP support for SSO mode on a standby RP:
RouterRP-standby# show glbp Ethernet0/0 - Group 1 State is Init (standby RP, peer state is Standby) Virtual IP address is 172.24.1.254 Hello time 3 sec, hold time 10 sec Redirect time 600 sec, forwarder time-out 14400 sec Preemption disabled Active is unknown Standby is unknown Priority 100 (default) Weighting 100 (default 100), thresholds: lower 1, upper 100 Load balancing: round-robin Group members: aabb.cc00.0100 (172.24.1.1) local aabb.cc00.0200 (172.24.1.2) There are 2 forwarders (0 active) Forwarder 1 State is Init (standby RP, peer state is Listen) MAC address is 0007.b400.0101 (learnt) Owner ID is aabb.cc00.0200 Preemption enabled, min delay 30 sec Active is unknown Forwarder 2 State is Init (standby RP, peer state is Active) MAC address is 0007.b400.0102 (default) Owner ID is aabb.cc00.0100 Preemption enabled, min delay 30 sec Active is unknownGLBP support for Stateful Switchover (SSO) mode is enabled by default but may be disabled by the no glbp sso command. If GLBP support for SSO mode is disabled, the output of the show glbp command on the standby RP will display a warning:
RouterRP-standby# show glbp Ethernet0/0 - Group 1 State is Init (GLBP SSO disabled) <------ GLBP SSO is disabled. Virtual IP address is 172.24.1.254 Hello time 3 sec, hold time 10 sec Redirect time 600 sec, forwarder time-out 14400 sec Preemption disabled Active is unknown Standby is unknown Priority 100 (default) Weighting 100 (default 100), thresholds: lower 1, upper 100 Load balancing: round-robin Group members: aabb.cc00.0100 (172.24.1.1) local There are 2 forwarders (0 active) Forwarder 1 State is Init (GLBP SSO disabled) MAC address is 0007.b400.0101 (learnt) Owner ID is aabb.cc00.0200 Preemption enabled, min delay 30 sec Active is unknown Forwarder 2 State is Init (GLBP SSO disabled) MAC address is 0007.b400.0102 (default) Owner ID is aabb.cc00.0100 Preemption enabled, min delay 30 sec Active is unknownThe table below describes the significant fields shown in the displays.
show standby
To display Hot Standby Router Protocol (HSRP) information, use the show standby command in user EXEC or privileged EXEC mode.
Syntax Description
type number
(Optional) Interface type and number for which output is displayed.
group
(Optional) Group number on the interface for which output is displayed.
all
(Optional) Displays information for groups that are learned or do not have the standby ip command configured.
brief
(Optional) A single line of output summarizes each standby group.
Command History
Release
Modification
10.0
This command was introduced.
12.2(8)T
The output for the command was made clearer and easier to understand.
12.3(2)T
The output was enhanced to display information about Message Digest 5 (MD5) authentication.
12.3(4)T
The output was enhanced to display information about HSRP version 2.
12.2(25)S
This command was integrated into Cisco IOS Release 12.2(25)S.
12.4(4)T
IPv6 support was added.
12.4(6)T
The output for this command was enhanced to display information about HSRP master and client groups.
12.4(9)T
The output for this command was enhanced to display information about HSRP group shutdown configuration.
12.4(11)T
The output for this command was enhanced to display information about HSRP Bidirectional Forwarding Detection (BFD) peering.
12.2(33)SRB
This command was integrated into Cisco IOS Release 12.2(33)SRB.
12.2(33)SXH
This command was integrated into Cisco IOS Release 12.2(33)SXH.
12.2(33)SXI
The output for this command was enhanced to display information about gratuitous ARP packets.
12.4(24)T
This command was modified. The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
12.2(33)SXI1
This command was modified. The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
Cisco IOS XE Release 2.1
This command was integrated into Cisco IOS XE Release 2.1.
Cisco IOS XE Release 2.4
This command was modified. The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
12.2(33)SRE
This command was modified. The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
15.3(1)S
This command was integrated into Cisco IOS Release 15.3(1)S.
Examples
The following is sample output from the show standby command:
Router# show standby Ethernet0/1 - Group 1 State is Active 2 state changes, last state change 00:30:59 Virtual IP address is 10.1.0.20 Secondary virtual IP address 10.1.0.21 Active virtual MAC address is 0004.4d82.7981 Local virtual MAC address is 0004.4d82.7981 (bia) Hello time 4 sec, hold time 12 sec Next hello sent in 1.412 secs Gratuitous ARP 14 sent, next in 7.412 secs Preemption enabled, min delay 50 sec, sync delay 40 sec Active router is local Standby router is 10.1.0.6, priority 75 (expires in 9.184 sec) Priority 95 (configured 120) Tracking 2 objects, 0 up Down Interface Ethernet0/2, pri 15 Down Interface Ethernet0/3 Group name is “HSRP1” (cfgd) Follow by groups: Et1/0.3 Grp 2 Active 10.0.0.254 0000.0c07.ac02 refresh 30 secs (next 19.666) Et1/0.4 Grp 2 Active 10.0.0.254 0000.0c07.ac02 refresh 30 secs (next 19.491) Group name is "HSRP1", advertisement interval is 34 secThe following is sample output from the show standby command when HSRP version 2 is configured:
Router# show standby Ethernet0/1 - Group 1 (version 2) State is Speak Virtual IP address is 10.21.0.10 Active virtual MAC address is unknown Local virtual MAC address is 0000.0c9f.f001 (v2 default) Hello time 3 sec, hold time 10 sec Next hello sent in 1.804 secs Preemption enabled Active router is unknown Standby router is unknown Priority 20 (configured 20) Group name is "hsrp-Et0/1-1" (default) Ethernet0/2 - Group 1 State is Speak Virtual IP address is 10.22.0.10 Active virtual MAC address is unknown Local virtual MAC address is 0000.0c07.ac01 (v1 default) Hello time 3 sec, hold time 10 sec Next hello sent in 1.804 secs Preemption disabled Active router is unknown Standby router is unknown Priority 90 (default 100) Track interface Serial2/0 state Down decrement 10 Group name is "hsrp-Et0/2-1" (default)The following is sample output from the show standby command with the brief keyword specified:
Router# show standby brief Interface Grp Prio P State Active addr Standby addr Group addr Et0 0 120 Init 10.0.0.1 unknown 10.0.0.12The following is sample output from the show standby command when HSRP MD5 authentication is configured:
Router# show standby Ethernet0/1 - Group 1 State is Active 5 state changes, last state change 00:17:27 Virtual IP address is 10.21.0.10 Active virtual MAC address is 0000.0c07.ac01 Local virtual MAC address is 0000.0c07.ac01 (default) Hello time 3 sec, hold time 10 sec Next hello sent in 2.276 secs Authentication MD5, key-string, timeout 30 secs Preemption enabled Active router is local Standby router is unknown Priority 110 (configured 110) Group name is "hsrp-Et0/1-1" (default)The following is sample output from the show standby command when HSRP group shutdown is configured:
Router# show standby Ethernet0/0 - Group 1 State is Init (tracking shutdown) 3 state changes, last state change 00:30:59 Track object 100 state Up Track object 101 state Down Track object 103 state UpThe following is sample output from the show standby command when HSRP BFD peering is enabled:
Router# show standby Ethernet0/0 - Group 2 State is Listen 2 state changes, last state change 01:18:18 Virtual IP address is 10.0.0.1 Active virtual MAC address is 0000.0c07.ac02 Local virtual MAC address is 0000.0c07.ac02 (v1 default) Hello time 3 sec, hold time 10 sec Preemption enabled Active router is 10.0.0.250, priority 120 (expires in 9.396 sec) Standby router is 10.0.0.251, priority 110 (expires in 8.672 sec) BFD enabled Priority 90 (configured 90) Group name is "hsrp-Et0/0-1" (default)The following is sample output from the show standby command used to display the state of the standby RP:
Router# show standby GigabitEthernet3/25 - Group 1 State is Init (standby RP, peer state is Active) Virtual IP address is 10.0.0.1 Active virtual MAC address is unknown Local virtual MAC address is 0000.0c07.ac01 (v1 default) Hello time 3 sec, hold time 10 sec Preemption disabled Active router is unknown Standby router is unknown Priority 100 (default 100) Group name is "hsrp-Gi3/25-1" (default)The table below describes the significant fields shown in the displays.
Related Commands
Command
Description
standby authentication
Configures an authentication string for the HSRP.
standby ip
Activates the HSRP.
standby mac-address
Specifies the virtual MAC address for the virtual router.
standby mac-refresh
Refreshes the MAC cache on the switch by periodically sending packets from the virtual MAC address.
standby preempt
Configures HSRP preemption and preemption delay.
standby priority
Configures Hot Standby priority of potential standby routers.
standby timers
Configures the time between hello messages and the time before other routers declare the active Hot Standby or standby router to be down.
standby track
Configures an interface so that the Hot Standby priority changes based on the availability of other interfaces.
standby use-bias
Configures HSRP to use the BIA of the interface as its virtual MAC address, instead of the preassigned MAC address (on Ethernet and FDDI) or the functional address (on Token Ring).
show standby arp gratuitous
To display the number and configured interval of gratuitous Address Resolution Protocol (ARP) packets sent by Hot Standby Router Protocol (HSRP), use the show standby arp gratuitous command in user EXEC or privileged EXEC configuration mode.
Usage Guidelines
This command displays the interface to which HSRP sends gratuitous ARP packets, the interval (in seconds) and the number. Gratuitous ARP packets are sent only when an HSRP group transitions to the Active state.
Examples
The following sample output displays information about HSRP gratuitous ARP packets:
Router# show standby arp gratuitous HSRP Gratuitous ARP Interface Interval Count Ethernet0/0 3 2Related Commands
Command
Description
debug standby events arp
Displays events related to HSRP.
standby arp gratuitous
Configures the number of gratuitous ARP packets sent by an active HSRP group, and how often they are sent.
standby send arp
Configures HSRP to check that all ARP entries for active HSRP addresses are correct prior to sending gratuitous ARP packets.
show standby capability
To display the limitation on how many virtual MAC addresses that some interfaces can listen to, use the show standby capability command in user EXEC or privileged EXEC mode.
Command History
Release
Modification
12.2
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX
This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.
Usage Guidelines
HSRP allows up to 256 groups to be configured on each interface, but it is possible that the MAC address filter of the interface does not support that many entries. For example, Versatile Interface Processor (VIP) interfaces only support 32 MAC addresses in their MAC address filter. If more HSRP groups are created than there are address filter entries, then it is likely that the router will stop listening to packets sent to the MAC address of an active HSRP group.
Examples
The following is sample output from the show standby capability command:
Router# show standby capability 7206VXR * indicates hardware may support HSRP | Interface Type H Potential Max Groups FastEthernet0/0 18 DEC21140A * 256 (0x60194B00, 0x60194BE8) FastEthernet1/0 18 DEC21140A * 256 (0x60194B00, 0x60194BE8) Ethernet2/0 61 AmdP2 * 256 (0x601A252C, 0x601A25E4) Ethernet2/1 61 AmdP2 * 256 (0x601A252C, 0x601A25E4) Ethernet2/2 61 AmdP2 * 256 (0x601A252C, 0x601A25E4) Ethernet2/3 61 AmdP2 * 256 (0x601A252C, 0x601A25E4) Ethernet2/4 61 AmdP2 * 256 (0x601A252C, 0x601A25E4) Ethernet2/5 61 AmdP2 * 256 (0x601A252C, 0x601A25E4) Ethernet2/6 61 AmdP2 * 256 (0x601A252C, 0x601A25E4) Ethernet2/7 61 AmdP2 * 256 (0x601A252C, 0x601A25E4) ATM3/0 74 ENHANCED ATM PA * 256 LAN emulation TokenRing4/0 66 HAWKEYE * 3 HSRP TR functional addresses (0x6076A590) TokenRing4/1 66 HAWKEYE * 3 HSRP TR functional addresses (0x6076A590) TokenRing4/2 66 HAWKEYE * 3 HSRP TR functional addresses (0x6076A590) TokenRing4/3 66 HAWKEYE * 3 HSRP TR functional addresses (0x6076A590) Serial5/0 67 M4T - Serial5/1 67 M4T - Serial5/2 67 M4T - Serial5/3 67 M4T - FastEthernet6/0 18 DEC21140A * 256 (0x60194B00, 0x60194BE8) VoIP-Null0 102 VoIP-Null -The table below describes the significant fields in the display.
Table 3 show standby capability Field Descriptions Field
Description
Interface
Interface type and number for the interface.
Type
Hardware type.
*
Indicates hardware may support HSRP.
Potential Max Groups
An estimate of the number of HSRP groups that a MAC address filter can process for an interface.
show standby delay
To display Hot Standby Router Protocol (HSRP) information about delay periods, use the show standby delay command in user EXEC or privileged EXEC mode.
Command History
Release
Modification
12.2
This command was introduced.
12.2(14)SX
Support for this command was introduced on the Supervisor Engine 720.
12.2(17d)SXB
Support for this command on the Supervisor Engine 2 was extended to Cisco IOS Release 12.2(17d)SXB.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
show standby internal
To display Hot Standby Routing Protocol (HSRP) internal flags and conditions, use the show standby internal command in user EXEC or privileged EXEC mode.
Syntax Description
interface-type interface-number
(Optional) Interface type and number for which output is displayed.
group
(Optional) Group number on the interface for which output is displayed. The range is 0 to 255.
summary
(Optional) Displays the number of configured and learned HSRP groups in various states on the interface.
all
(Optional) Displays HSRP groups on all subinterfaces if the specified interface is the main interface.
Command History
Release
Modification
12.2
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX
This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.
12.2(33)SXI2
This command was modified. The group argument and the summary and all keywords were added.
12.2(33)SRE
This command was modified. The group argument and the summary and all keywords were added.
15.0(1)M
This command was modified. The group argument and the summary and all keywords were added.
Usage Guidelines
The show standby internal interface-type interface-number summary command applies to both the main interface and subinterfaces. When the command is used for the main interface the display output does not include groups on subinterfaces. This command displays all configured and learned HSRP groups in various states on the specified interface or subinterface.
The show standby internal interface-type interface-number summary all command applies only to the main interface, not to subinterfaces. It displays the total number of configured and learned HSRP groups in various states, including groups on all subinterfaces under the main interface.
The show standby internal summary command displays all configured and learned HSRP groups in various states on all interfaces.
Examples
The following example shows a configuration example and sample output from the show standby internal command for the configuration. The output shows internal flags and hardware and software information for Ethernet interface 2/0. The output shows that HSRP group 1 is configured for priority and preemption, and that the standby timers and standby-use bia commands have been configured.
Router# show standby internal interface Ethernet2/0 ip address 10.0.0.254 255.255.0.0 standby use-bia standby version 2 standby 1 ip 10.0.0.1 standby 1 timers 2 6 standby 1 priority 110 standby 1 preempt Router# show standby internal Global Confg: 0000 Et2/0 If hw AmdP2, State 0x210040 Et2/0 If hw Confg: 0001, USEBIA Et2/0 If hw Flags: 0000 Et2/0 If sw Confg: 0040, VERSION Et2/0 If sw Flags: 0001, USEBIA Et2/0 Grp 1 Confg: 0072, IP_PRI, PRIORITY, PREEMPT, TIMERS Et2/0 Grp 1 Flags: 0000The following sample output from the show standby internal ethernet0/1 summary all command shows 400 active configured groups and no active learned groups for Ethernet interface 0/1:
Router# show standby internal ethernet 0/1 summary all Disable Init Learn Listen Speak Standby Active Ethernet0/1 Configured 0 0 0 0 0 0 400 Learnt 0 0 0 0 0 0 0The table below describes the significant fields shown in the display.
Table 5 show standby internal summary all Field Description Field
Description
Disable
Number of HSRP groups in the disabled state. An HSRP group that is in the disabled state is not yet ready or able to participate in HSRP. All learned groups are always in the disabled state.
Init
Number of HSRP groups in the initial state. Locally configured groups with an interface that is down or groups without a specified interface IP address appear in the Init state.
Learn
Number of HSRP groups in the learned state. A group that is learned is neither in the active nor standby state, nor does it have enough information to attempt to claim the active or standby roles.
Listen
Number of HSRP groups in the listen state. A router in the listen state is neither in the active nor standby state, but if no messages are received from the active or standby router, it will start to speak.
Speak
Number of HSRP groups that are sending packets to claim the active or standby role.
Standby
Number of standby HSRP groups.
Active
Number of active HSRP groups.
show standby neighbors
To display information about Hot Standby Router Protocol (HSRP) peer routers on an interface, use the show standby neighbors command in privileged EXEC mode.
Usage Guidelines
Use this command to display information about HSRP peer neighbors. This command displays the HSRP groups for which each neighbor is acting as the active and standby router and whether Bidirectional Forwarding Detection (BFD) peering is enabled for each neighbor.
Examples
The following example displays the HSRP neighbors on Ethernet interface 0/0. Neighbor 10.0.0.250 is active for group 2 and standby for groups 1 and 8, and is registered with BFD:
Router# show standby neighbors Ethernet0/0 HSRP neighbors on Ethernet0/0 10.0.0.250 Active groups: 2 Standby groups: 1, 8 BFD enabled 10.0.0.251 Active groups: 5, 8 Standby groups: 2 BFD enabled 10.0.0.253 No Active groups No Standby groups BFD enabledThe following example displays information for all HSRP neighbors:
Router# show standby neighbors HSRP neighbors on FastEthernet2/0 10.0.0.2 No active groups Standby groups: 1 BFD enabled HSRP neighbors on FastEthernet2/0 10.0.0.1 Active groups: 1 No standby groups BFD enabledThe table below describes the significant fields shown in the displays.
Related Commands
Command
Description
bfd
Sets the baseline BFD session parameters on an interface.
debug standby events neighbor
Displays HSRP neighbor events.
show bfd neighbor
Displays a line-by-line listing of existing BFD adjacencies.
show standby
Displays information about HSRP.
standby bfd
Reenables HSRP BFD peering for a specified interface if it has been disabled.
standby ip
Activates HSRP.
show standby redirect
To display Internet Control Message Protocol (ICMP) redirect information on interfaces configured with the Hot Standby Router Protocol (HSRP), use the show standby redirect command in user EXEC or privileged EXEC mode.
show standby redirect [ ip-address | interface-type interface-number [ active | passive | timers ] ]
Examples
The following is sample output from the show standby direct command with no optional keywords:
Router# show standby redirect Interface Redirects Unknown Adv Holddown Ethernet0/2 enabled enabled 30 180 Ethernet0/3 enabled disabled 30 180 Active Hits Interface Group Virtual IP Virtual MAC 10.19.0.7 0 Ethernet0/2 3 10.19.0.13 0000.0c07.ac03 local 0 Ethernet0/3 1 10.20.0.11 0000.0c07.ac01 local 0 Ethernet0/3 2 10.20.0.12 0000.0c07.ac02 Passive Hits Interface Expires in 10.19.0.6 0 Ethernet0/2 151.800The table below describes the significant fields in the display.
Table 7 show standby redirects Field Descriptions Field
Description
Interface
Interface type and number for the interface.
Redirects
Indicates whether redirects are enabled or disabled on the interface.
Unknown
Indicates whether redirects to an unknown router are enabled or disabled on the interface.
Adv
Number indicating the passive router advertisement interval in seconds.
Holddown
Number indicating the passive router hold interval in seconds.
Active
Active HSRP routers on the subnet.
Hits
Number of address translations required for ICMP information.
Interface
Interface type and number for the interface on the active router.
Group
Hot standby group number.
Virtual IP
Virtual IP address of the active HSRP router.
Virtual MAC
Virtual MAC address of the active HSRP router.
Passive
Passive HSRP routers on the subnet.
Hits
Number of address translations required for ICMP information.
Interface
Interface type and number for the interface on the passive router.
Expires in
Time in seconds for a virtual IP to expire and the holddown time to apply for filtering routes to the standby router.
The following is sample output from the show standby redirect command with a specific interface Ethernet 0/3:
Router# show standby redirect e0/3 Interface Redirects Unknown Adv Holddown Ethernet0/3 enabled disabled 30 180 Active Hits Interface Group Virtual IP Virtual MAC local 0 Ethernet0/3 1 10.20.0.11 0000.0c07.ac01 local 0 Ethernet0/3 2 10.20.0.12 0000.0c07.ac02The following is sample output from the show standby redirect command showing all active routers on interface Ethernet 0/3:
Router# show standby redirect e0/3 active Active Hits Interface Group Virtual IP Virtual MAC local 0 Ethernet0/3 1 10.20.0.11 0000.0c07.ac01 local 0 Ethernet0/3 2 10.20.0.12 0000.0c07.ac02The following is sample output from the show standby redirect ip-address command, where the IP address is the real IP address of the router:
Router# show standby redirect 10.19.0.7 Active Hits Interface Group Virtual IP Virtual MAC 10.19.0.7 0 Ethernet0/2 3 10.19.0.13 0000.0c07.ac03show vrrp
To display the status of configured Virtual Router Redundancy Protocol (VRRP) groups on a device, use the show vrrp command in privileged EXEC mode.
Syntax Description
group number
VRRP group number. The range is from 1 to 255.
Ethernet
(Optional) Displays Ethernet information for IEEE 802.3.
ipv4
(Optional) Displays information about IPv4 groups.
ipv6
(Optional) Displays information about IPv6 groups.
all
(Optional) Displays information about all VRRP groups, including groups in a disabled state.
brief
(Optional) Displays a summary view of the VRRP group information.
detail
(Optional) Displays information about all VRRP groups, including statistical information.
statistics
(Optional) Displays statistical information about the VRRP groups.
Command History
Release
Modification
12.0(18)ST
This command was introduced.
12.0(22)S
This command was integrated into Cisco IOS Release 12.0(22)S.
12.2(13)T
This command was integrated into Cisco IOS Release 12.2(13)T.
12.2(14)S
This command was integrated into Cisco IOS Release 12.2(14)S.
12.3(2)T
This command was enhanced to display the state of a tracked object.
12.3(14)T
This command was enhanced to display message digest algorithm 5 (MD5) authentication for a VRRP using text strings, key chains, or key strings.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(31)SB2
This command was integrated into Cisco IOS Release 12.2(31)SB2.
12.2SX
This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.
12.2(33)SRC
This command was enhanced to display synchronized state information from the active Route Processor (RP).
Cisco IOS XE Release 2.1
This command was integrated into Cisco IOS XE Release 2.1.
12.4(24)T
This command was modified. The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
Cisco IOS XE Release 2.6
This command was modified. The output was modified to display information about configured Virtual Router Redundancy Service (VRRS) names.
15.3(3)M
This command was modified. The output was modified to display information about a tracking object.
Examples
The following is sample output from the show vrrp command:
Device# show vrrp Ethernet1/0 - Group 1 State is Master Virtual IP address is 10.2.0.10 Virtual MAC address is 0000.5e00.0101 Advertisement interval is 3.000 sec Preemption is enabled min delay is 0.000 sec Priority 100 Track object 1 state down decrement 15 Master Router is 10.2.0.1 (local), priority is 100 Master Advertisement interval is 3.000 sec Master Down interval is 9.609 sec Ethernet1/0 - Group 2 State is Master Virtual IP address is 10.0.0.20 Virtual MAC address is 0000.5e00.0102 Advertisement interval is 1.000 sec Preemption is enabled min delay is 0.000 sec Priority 95 Master Router is 10.0.0.1 (local), priority is 95 Master Advertisement interval is 1.000 sec Master Down interval is 3.628 secThe following is sample output from the show vrrp command, displaying peer RP state information:
Device# show vrrp Ethernet0/0 - Group 1 State is Init (standby RP, peer state is Master) Virtual IP address is 172.24.1.1 Virtual MAC address is 0000.5e00.0101 Advertisement interval is 1.000 sec Preemption enabled Priority is 255 Master Router is 172.24.1.1 (local), priority is 255 Master Advertisement interval is 1.000 sec Master Down interval is 3.003 secThe following sample output displays information about a configured VRRS group name:
Device# show vrrp GigabitEthernet0/0/0 - Group 1 State is Master Virtual IP address is 10.0.0.7 Virtual MAC address is 0000.5e00.0101 Advertisement interval is 1.000 sec Preemption enabled Priority is 100 VRRS Group name CLUSTER1 ! Configured VRRS Group Name Master Router is 10.0.0.1 (local), priority is 100 Master Advertisement interval is 1.000 sec Master Down interval is 3.609 secThe following is sample output from the show vrrp command when an object is being tracked:
Device# show vrrp Ethernet0/0 - Group 1 - Address-Family IPv4 State is BACKUP State duration 1 mins 41.856 secs Virtual IP address is 172.24.1.253 Virtual MAC address is 0000.5E00.0101 Advertisement interval is 1000 msec Preemption enabled Priority is 80 (configured 100) Track object 1 state Down decrement 20 Master Router is 172.24.1.2, priority is 100 Master Advertisement interval is 1000 msec (learned) Master Down interval is 3609 msec (expires in 3297 msec)The table below describes the significant fields shown in the displays.
Table 8 show vrrp Field Descriptions Field
Description
Ethernet1/0 - Group
Interface type and number, and VRRP group number.
State is
Role this interface plays within VRRP (master or backup).
Advertisement interval is
Interval at which the device will send VRRP advertisements when it is the master virtual device. This value is configured with the vrrp timers advertise command.
Priority
Priority of the interface.
Track object
Object number representing the object to be tracked.
state
State value (up or down) of the object being tracked.
decrement
Amount by which the priority of the device is decremented (or incremented) when the tracked object goes down (or comes back up).
Master Router is
IP address of the current master virtual device.
priority is
Priority of the current master virtual device.
Master Advertisement interval is
Advertisement interval, in seconds, of the master virtual device.
Master Down interval is
Calculated time, in seconds, that the master virtual device can be down before the backup virtual device takes over.
The following is sample output from the show vrrp command with the brief keyword:
Device# show vrrp brief Interface Grp A-F Pri Time Own Pre State Master addr/Group addr Et1/0 1 IPv4 150 0 N Y MASTER 10.0.0.1(local) 10.0.0.10 Et1/0 1 IPv6 100 0 N Y INIT AF-UNDEFINED no address Et1/0 6 IPv6 150 0 N Y MASTER FE80::1(local) FE80::100The table below describes the significant fields shown in the display.
Table 9 show vrrp brief Field Descriptions Field
Description
Interface
Interface type and number.
Grp
VRRP group to which this interface belongs.
Pri
VRRP priority number for this group.
Time
Calculated time that the master virtual device can be down before the backup virtual device takes over.
Own
IP address owner.
Pre
Preemption status. Y indicates that preemption is enabled. If this field is empty, preemption is disabled.
State
Role this interface plays within VRRP (master or backup).
Master addr
IP address of the master virtual device.
Group addr
IP address of the virtual device.
show vrrp interface
To display the Virtual Router Redundancy Protocol (VRRP) groups and their status on a specified interface, use the show vrrp interface command in user EXEC or privileged EXEC mode.
Command History
Release
Modification
12.0(18)ST
This command was introduced.
12.0(22)S
This command was integrated into Cisco IOS Release 12.0(22)S.
12.2(13)T
This command was integrated into Cisco IOS Release 12.2(13)T.
12.2(14)S
This command was integrated into Cisco IOS Release 12.2(14)S.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(31)SB2
This command was integrated into Cisco IOS Release 12.2(31)SB2.
12.2SX
This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.
Cisco IOS XE Release 2.1
This command was integrated into Cisco IOS XE Release 2.1.
12.4(24)T
This command was modified. The output was modified to hide configured passwords when MD5 key-string or text authentication is configured.
Examples
The following is sample output from the show vrrp interfacecommand:
Router# show vrrp interface ethernet 1/0 Ethernet1/0 - Group 1 State is Master Virtual IP address is 10.2.0.10 Virtual MAC address is 0000.5e00.0101 Advertisement interval is 3.000 sec Preemption enabled, delay min 4 secs Priority is 100 Master Router is 10.2.0.1 (local), priority is 100 Master Advertisement interval is 3.000 sec Master Down interval is 9.609 sec Ethernet1/0 - Group 2 State is Master Virtual IP address is 10.0.0.20 Virtual MAC address is 0000.5e00.0102 Advertisement interval is 1.000 sec Preemption enabled, delay min 2 sec Priority is 95 Authentication MD5, key-string Master Router is 10.0.0.1 (local), priority is 95 Master Advertisement interval is 1.000 sec Master Down interval is 3.628 secThe table below describes the significant fields shown in the display.
Table 10 show vrrp interface Field Descriptions Field
Description
Ethernet1/0 - Group 1
Interface type and number, and VRRP group number.
State is
Role this interface plays within VRRP (master or backup).
Virtual IP address is
Virtual IP address for this group.
Virtual MAC is
Virtual MAC address for this group.
Advertisement interval is
Interval at which the router will send VRRP advertisements when it is the master virtual router. This value is configured with the vrrp timers advertise command.
Preemption
Preemption is either enabled or disabled.
delay min
If preemption is enabled, delay min is the minimum time (in seconds) that a router will wait before preempting the current master router. This field is displayed only if the delay is set at greater than 0 seconds.
Authentication MD5, key-string
The currently configured authentication mechanism for this group. Possible values for this field include “MD5” for Message Digest 5 encryption, as shown in the example above. Other messages not displayed in the example include “text, string “‘my_secret_password’” for plain text and “key-chain ‘the_chain_i’m_looking_at’.”
Priority is 100
Priority of this group on this interface.
Master Router is 10.2.0.1 (local)
IP address of the current master virtual router.
Priority is 100
Priority of the current master router.
Master Advertisement interval
Advertisement interval of the master virtual router.
Master Down interval
Calculated time that the master virtual router can be down before the backup virtual router takes over.
show vrrs
To display information associated with Virtual Router Redundancy Service (VRRS), use the show vrrs command in privileged EXEC mode.
show vrrs { client [ vrrs-client-name ] | pathway [ Ethernet number ] | server [ GLBP [ vrrs-server-name ] | HSRP [ vrrs-server-name ] | VRRP [ vrrs-server-name ] ] | tag [ vrrs-tag-name ] }
Syntax Description
client vrrs-client-name
Displays information about the VRRS client. Optionally, you can specify the VRRS client name.
pathway
Displays information about the VRRS pathway.
Ethernet number
(Optional) Displays information about the ethernet interface used for the VRRS pathway.
server
Displays information about the VRRS server.
GLBP
(Optional) Displays information about the Group Load Balancing Protocol (GLBP) server.
HSRP
(Optional) Displays information about the Hot Standby Redundancy Protocol (HSRP) server.
VRRP
(Optional) Displays information about the Virtual Router Redundancy Protocol (VRRP) server.
vrrs-server-name
(Optional) Specifies the VRRS server name.
tag vrrs-tag-name
Displays information about the VRRS tag. Optionally, you can specify the VRRS tag name.
Usage Guidelines
You must configure the VRRS pathway by defining the First Hop Redundancy Protocol (FHRP) groups and configuring the interfaces that require redundant virtual gateway.
Examples
The following is sample output from the show vrrs command with the pathway keyword for an “active” pathway with tag name “group1” and VRRP in master state on the VLAN interface:
Device# show vrrs pathway Pathway ["group1"@Vlan42] State is ACTIVE [VRRS push "ACTIVE"] Virtual MAC is fe24.fe24.fe24 [Active] (0) Address-family is v4 Options: Default Pathway=0, Owner Mode=0, Accept-Mode=1, Configured vMAC=1 Evaluation: No Shut=1, Connected=1, OIR=1, L2 Ready=1, L3 Ready=1, vMAC Ready=1, vIP Ready=1 Virtual Address List: 192.168.42.254The following is sample output from the show vrrs command with the pathway keyword for a “not ready” pathway with tag name “group1” and VRRP in shutdown state on the ethernet 0/1 interface:
Device# show vrrs pathway Pathway ["group1"@Et0/1] State is NOT READY [VRRS push "INIT"] Virtual MAC is 0101.0101.0101 [Reserved] (0) Address-family is v4 Options: Default Pathway=0, Owner Mode=0, Accept-Mode=1, Configured vMAC=1 Evaluation: No Shut=1, Connected=1, OIR=1, L2 Ready=1, L3 Ready=1, vMAC Ready=1, vIP Ready=1 Virtual Address List: 192.168.42.254The following is sample output from the show vrrs command with the pathway keyword for a “inactive” pathway with tag name “group1” and VRRP in backup state on the ethernet 0/1 interface:
Device# show vrrs pathway Pathway ["group1"@Et0/1] State is INACTIVE [VRRS push "BACKUP"] Virtual MAC is 0101.0101.0101 [Reserved] (0) Address-family is v4 Options: Default Pathway=0, Owner Mode=0, Accept-Mode=1, Configured vMAC=1 Evaluation: No Shut=1, Connected=1, OIR=1, L2 Ready=1, L3 Ready=1, vMAC Ready=1, vIP Ready=1 Virtual Address List: 192.168.42.254The following is sample output from the show vrrs command with the server keyword with a tag name “group1”:
Device# show vrrs server Server Name: vrrpVlan40 Address Family: IPv4 Interface: Ethernet0/0 State: ACTIVE vMAC: 0000.5E00.0101 vIP Address: 172.16.1.254 Tags Connected: Tag Name group1show vrrs clients
To display a list of Virtual Router Redundancy Service (VRRS) clients, use the show vrrs clients command in user EXEC or privileged EXEC mode.
Usage Guidelines
Use the show vrrs clients command to display a list of VRRS clients currently active on the router. The display contains the client IDs, client priority, whether the client is interested in all VRRS groups, and the client name.
The client ID is a dynamic integer value assigned to the client when it registers with VRRS. If the client ID for a particular client is different between two versions of a Cisco IOS XE image, it means there is a change in initialization order in the two images.
The client priority is a priority that the client chooses during registration with VRRS. The client priority dictates the order in which clients receive server notifications.
Examples
The following example displays a list VRRS clients:
Router# show vrrs clients ID Priority All-groups Name ------------------------------ 1 High No VRRS-Plugins 2 Low Yes VRRS-Accounting 3 Normal No PPPOE-VRRS-CLIENTThe table below describes the significant fields shown in the display.
Related Commands
Command
Description
show vrrp
Displays a brief or detailed status of one or all configured VRRP groups on the router.
show vrrs group
Display information about VRRS groups.
show vrrs plugin database
Displays details about the internal VRRS plug-in database.
show vrrs summary
Displays a summary of all VRRS groups.
show vrrs group
To display information about Virtual Router Redundancy Service (VRRS) groups, use the show vrrs group command in user EXEC or privileged EXEC mode.
Usage Guidelines
Use the show vrrs group command to display details of a VRRS redundancy group, if a group name is specified. If no group name is specified, details of all VRRS groups configured or added by clients on the router are displayed.
Examples
The following example displays information about all currently configured VRRS groups:
Router# show vrrs group DT-CLUSTER-3 Server Not configured, state INIT, old state INIT, reason Protocol Address family IPv4, Virtual address 0.0.0.0, Virtual mac 0000.0000.0000 Active interface address 0.0.0.0, standby interface address 0.0.0.0 Client 5 VRRS TEST CLIENT, priority Low DT-CLUSTER-2 Server VRRP, state BACKUP, old state INIT, reason HA SSO Address family IPv4, Virtual address 10.1.1.1, Virtual mac 0000.5e00.0102 Active interface address 10.1.1.3, standby interface address 10.1.1.2 Client 1 VRRS-Plugins, priority High Client 2 VRRS-Accounting, priority Low Client 3 PPPOE-VRRS-CLIENT, priority Normal DT-CLUSTER-1 Server VRRP, state ACTIVE, old state INIT, reason HA SSO Address family IPv4, Virtual address 10.1.1.1, Virtual mac 0000.5e00.0101 Active interface address 10.1.1.2, standby interface address 10.0.0.0 Client 1 VRRS-Plugins, priority High Client 2 VRRS-Accounting, priority Low Client 3 PPPOE-VRRS-CLIENT, priority NormalThe table below describes the significant fields shown in the display.
Table 12 show vrrs group Field Descriptions Field
Description
state
Current state of the server.
old state
Previous state of the server
reason
Reason for the last server state change.
Address family IPv4
Address family for this VRRS group.
Virtual address 0.0.0.0
Virtual IP address for this VRRS group.
Virtual mac 0000.0000.0000
Virtual MAC address for this VRRS group.
Client 1
Client ID of a VRRS client.
VRRS-Plugins
Client name.
priority High
Priority of this client.
Related Commands
Command
Description
show vrrp
Displays a brief or detailed status of one or all configured VRRP groups on the router.
show vrrs clients
Displays a list of VRRS clients.
show vrrs plugin database
Displays details about the internal VRRS plug-in database.
show vrrs summary
Displays a summary of all VRRS groups.
show vrrs plugin database
To display details about the internal Virtual Router Redundancy Service (VRRS) plug-in database, use the show vrrs plugin database command in user EXEC or privileged EXEC mode.
Usage Guidelines
Use the show vrrs plugin database command to display details of the internal VRRS plug-in database. This command maps an interface-specific configuration with a VRRS redundancy group.
The output display includes; name, server connection status, VRRS State (simple), MAC address, test control indicator, VRRS client handle, and the plug-in interface list.
Examples
The following example displays information about the internal VRRS plug-in database:
Router# show vrrs plugin database VRRS Plugin Database ------------------------------------------------ Name = VRRS_NAME_1 Server connection = Live State = Disabled MAC addr = 0000.5e00.0101 Test Control = False Client Handle = 3741319170 Interface list = gige0/0/0.2 gige0/0/0.3 ------------------------------------------------ Name = VRRS_NAME_2 Server connection = Diconnected State = Disabled MAC addr = 0000.0000.0000 Test Control = False Client Handle = 603979779 Interface list = gige0/0/0.4 ------------------------------------------------show vrrs summary
To display a summary of all Virtual Router Redundancy Service (VRRS) groups, use the show vrrs summary command in user EXEC or privileged EXEC configuration mode.
Usage Guidelines
Use the show vrrs summary command to display a summary of VRRS groups either configured on a router or added by a client. The display includes the following group information: name, server, state, and virtual address.
Examples
The following example displays a summary of VRRS groups:
Router# show vrrs summary Group Server State Virtual-address ------------------------------------------------------------------------------ DT-CLUSTER-3 UNKNOW INIT 0.0.0.0 DT-CLUSTER-2 VRRP BACKUP 10.1.1.1 DT-CLUSTER-1 VRRP ACTIVE 10.1.1.2The table below describes the significant fields shown in the display.
Related Commands
Command
Description
show vrrp
Displays a brief or detailed status of one or all configured VRRP groups on the router.
show vrrs clients
Displays a list of VRRS clients.
show vrrs group
Display information about VRRS groups.
show vrrs plugin database
Displays details about the internal VRRS plug-in database.