12-03-2012 07:19 PM - edited 03-04-2019 06:18 PM
I am using HSRP with in R1 and R2, where R1 is active and connected to 5 MPLS serial link and configured as1 Multilink for MPLS and R2 is connected to 4 point to point serial link. My all data should go through MPLS first and when MPLS goes down data shoud go through R2 point to point link.
Here I want to know that can I use (In R1 HSRP configuration) Track command standby 20 trackMultilink1 for multilink like we use in single link
(Ex- standby 1 track serial 0) so if my R1 multilink goes down R2 will become active and data can go through R2 link
-----------------------------------------------------------------Configuration of R1---------------------------------------------------
interface Multilink1
description < Multilink >
bandwidth 10240
ip address 10.20.128.1 255.255.255.252
ip accounting output-packets
ip flow ingress
ppp multilink
ppp multilink links maximum 5
ppp multilink links minimum 1
ppp multilink group 1
!
!
interface GigabitEthernet0/0
description <<connectivity to core switch>>
ip address 172.25.250.34 255.255.255.240
ip nat inside
no ip virtual-reassembly
duplex full
speed 100
standby 20 ip 172.25.250.33
standby 20 priority 120
standby 20 preempt
interface Serial0/0/0
description < MPLS Link >
bandwidth 2048
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
no fair-queue
!
!
interface Serial0/1/0
description < MPLS Link >
bandwidth 2048
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
no fair-queue
!
!
interface Serial0/1/1
description < MPLS Link >
bandwidth 2048
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
no fair-queue
!
!
interface Serial0/2/0
description < MPLS Link >
bandwidth 2048
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
no fair-queue
!
!
interface Serial0/2/1
description <MPLS Link>
bandwidth 2048
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
no fair-queue
!
ip route 0.0.0.0 0.0.0.0 10.20.128.2
___________________________Configuration of R2---------------------------------------------------
interface Multilink1
bandwidth 8192
ip address 172.25.1.237 255.255.255.252
ip flow ingress
ppp multilink
ppp multilink group 1
!
!
interface GigabitEthernet0/0
ip address 172.25.250.35 255.255.255.240
shutdown
duplex full
speed 100
standby 20 ip 172.25.250.33
standby 20 priority 110
standby 20 preempt
!
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
!
interface GigabitEthernet0/2
no ip address
shutdown
duplex full
speed 100
!
!
interface Serial0/0/0
bandwidth 2048
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
no fair-queue
!
!
interface Serial0/1/0
bandwidth 2048
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
no fair-queue
!
!
interface Serial0/2/0
bandwidth 2048
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
no fair-queue
!
!
interface Serial0/2/1
bandwidth 2048
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 1
no fair-queue
!
!
interface BRI0/3/0
no ip address
encapsulation hdlc
shutdown
!
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
ip route 0.0.0.0 0.0.0.0 172.25.1.238
!
12-03-2012 09:19 PM
Hi Tarun,
Yes. you can configure to track multilink interface
Raju
12-04-2012 12:13 AM
interface GigabitEthernet0/0
description <
ip address 172.25.250.34 255.255.255.240
ip nat inside
no ip virtual-reassembly
duplex full
speed 100
standby 20 ip 172.25.250.33
standby 20 priority 120
standby 20 preempt
standby 20 track multilink1
will be configured in R1.
12-04-2012 03:11 AM
I have one comment about your configuration of HSRP. You are setting the priority to 120 and 110. By default track will decrease the priority by 10. So if the multilink goes down the priority will become 110. And with equal priority the standby will not become active. It would be more effective to set the priority to something like 115 and 110 so that when track reduces the priority it becomes lower than the standby.
HTH
Rick
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