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CUBE High Availability (HA) Configuration on ISR-G2

 

 

Introduction

This document covers the configuration procedure on Cisco Unified Border Element (CUBE) High Availability (HA) HSRP Configuration on ISR-G2 Box-to-Box failover.

 

CUBE Configuration on ISR-G2 Box-to-Box Failover

 

Below configuration tested on Cisco IOS Release 15.1.2T release on ISR-G2 Box-to-Box Failover dual attached.

 

cube-ha-1.png

 

cube-ha-2.png

 

Sample configuration on Acitve Box - ISR-G2

 

 

redundancy inter-device

scheme standby SB

!
!-- scheme standby SB - Single Scheme Supported

 

voice service voip

mode border-element

allow-connections sip to sip

redundancy

!

!-- redundancy - Trun on CUBE checkpointing on both Active and Standby Box

 

 

Basic HSRP Configuration

 

ipc zone default

association 1

no shutdown

protocol sctp

local-port 5000

local-ip 10.10.24.14

remote-port 5000

remote-ip 10.10.24.13

!

 

Outside i/f: HSRP group 0

 

interface GigabitEthernet0/0

ip address 10.10.25.14 255.255.255.0

standby version 2

standby 0 ip 10.10.25.1

standby 0 priority 50

standby 0 name SB

bfd interval 500 min_rx 500 multiplier 3

!

 

Inside i/f: HSRP group 6 Configuration

 

interface GigabitEthernet0/1

ip address 10.10.24.14 255.255.255.0

standby version 2

standby 6 ip 10.10.24.1

standby 6 priority 50

standby 6 track 1 decrement 10

bfd interval 500 min_rx 500 multiplier 3

 

 

 

Sample configuration on Standby Box - ISR-G2

 

 

redundancy inter-device

scheme standby SB

!

!-- scheme standby SB - Single Scheme Supported

 

voice service voip

mode border-element

allow-connections sip to sip

redundancy

!

!-- redundancy - Trun on CUBE checkpointing on both Active and Standby Box

 

Basic HSRP Configuration

 

ipc zone default

association 1

no shutdown

protocol sctp

local-port 5000

local-ip 10.10.24.13

remote-port 5000

remote-ip 10.10.24.14

!

 

Outside i/f: HSRP group 0

 

interface GigabitEthernet0/0

ip address 10.10.25.13 255.255.255.0

standby version 2

standby 0 ip 10.10.25.1

standby 0 priority 50

standby 0 name SB

bfd interval 500 min_rx 500 multiplier 3

!

 

Inside i/f: HSRP group 6 Configuration

 

interface GigabitEthernet0/1

ip address 10.10.24.13 255.255.255.0

standby version 2

standby 6 ip 10.10.24.1

standby 6 priority 50

standby 6 track 1 decrement 10

bfd interval 500 min_rx 500 multiplier 3

 

 

 

Configuration on both Active and Standby Box - ISR-G2

 

 

Bind traffic destined to the outside (SP SIP trunk) to the outside HSRP address

 

dial-peer voice 100 voip

description to-SIP

destination-pattern 9T

session protocol sipv2

session target ipv4:x.x.x.x

voice-class sip bind control source-interface GigabitEthernet0/0

voice-class sip bind media source-interface GigabitEthernet0/0

!

Bind traffic destined to the inside (CUCM or IP-PBX) to the inside HSRP address

 

dial-peer voice 200 voip

description to-CUCM

destination-pattern 555….

session protocol sipv2

session target ipv4:y.y.y.y

voice-class sip bind control source-interface GigabitEthernet0/1

voice-class sip bind media source-interface GigabitEthernet0/1

!

 

Configure media inactivity feature to clean up any calls that may not disconnect after a failover

 

ip rtcp report interval 3000

!

gateway

media-inactivity-criteria all

timer receive-rtcp 5

timer receive-rtp 86400

 

 

Troubleshoot


These show and debug commands are useful during troubleshooting of box-to-box redundancy:

 

The following is a summary list of the show commands useful during troubleshooting of B2B HA:

 

show redundancy application group all

show redundancy application transport clients

show redundancy client domain all | inc VOIP RG

show voice high-availability summary

show voip fpi stats

 

show redundancy state

show redundancy inter-device

show standby brief

show standby internal

show sip-ua status

show sip-ua statistics

show voip rtp connection | include connection

show arp

 


The following is a summary list of the debugs useful during troubleshooting of B2B HA:

 

Debug voip rtp session

Debug voice high-availability all

Debug voip fpi all

debug redundancy application group <config | faults | media | protocol | rii |

transport | vp>

 

debug voip ccapi all
debug voip ccapi error
debug voip rtcp session
debug voip rtp error
debug voip rtcp error
debug voice high-availability error
debug ccsip info
debug ccsip messages
debug ccsip media
debug ccsip error
debug standby terse

 

 

Related Information

 

Comments
New Member

Hi Muthurani,

Thank you for this good document.

Can we use VRRP instead of HSRP for this same configuration ?

Thank you in advance,

Haitham

Cisco Employee

Nice Doc.....

One thing to note

bfd should not be configured on HA CUBES - leads to unexpected reloads.


					
				
			
			
			
				
New Member

Good Job.

 

However, bfd command MUST NOT be used/configured along with SIP HA config. It will crash the standby router during HA switchover. I personally had to deal with this issue last year with a customer. They had CUBE HA setup, with bfd. Everytime active CUBE failed, the other would fail during switchover as well. Cisco TAC pointed to bfd setup within the CUBE HA config.

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