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Juniper-Cisco Vrrp problem

09.29.09   |  
‎09-29-2009 10:15 PM

I have cisco 3845 and juniper J2320 router. Configured VRRP on both devices. With the change in priority cisco router goes to master and backup state. But Juniper J2320 router still remains in master state even when priority on cisco device is increased.

 

Need help urgent. 

5 REPLIES
Routing

Re: Juniper-Cisco Vrrp problem

09.30.09   |  
‎09-30-2009 08:08 AM

Hi,

 

could you please paste your configurations and output of "monitor traffic interface ge-x/x/x detail" from your VRRP interface? Thanks!

 

Kind Regards

Michael Pergament

Routing

Re: Juniper-Cisco Vrrp problem

09.30.09   |  
‎09-30-2009 09:52 AM

Jawwad_Paracha wrote:

I have cisco 3845 and juniper J2320 router. Configured VRRP on both devices. With the change in priority cisco router goes to master and backup state. But Juniper J2320 router still remains in master state even when priority on cisco device is increased.

 

Need help urgent. 


The symptoms you describe point to a unidirectional packet loss problem.  Seems like the 3845 is hearing the VRRP packets from the J2320.  But, the J2320 isn't getting (or not accepting for some reason) the packets from the 3845.

 

Do you have a input firewall filter on the lo0.0 interface of J2320?  Is it configured to accept VRRP?

 

Note: if you are using VRRP authentication, you will need to allow IP proto 51 (IP Authentication Header AH) too.

 

Regards,

Ben

Routing

Re: Juniper-Cisco Vrrp problem

[ Edited ]
09.30.09   |  
‎09-30-2009 09:15 PM

Please check the config below.

vrrp-group 1 {
virtual-address 1.1.1.1;
priority 90;
fast-interval 100;
preempt {
hold-time 60;
}
accept-data;
authentication-type simple;
authentication-key "$9$MRv8NdwYgJUjsY"; ## SECRET-DATA

Cisco:

vrrp 1 ip 1.1.1.1
vrrp 1 timers advertise msec 100
vrrp 1 authentication 1234
vrrp 1 priority 110

 

I have even tried without authentication,even without fast-interval.

Message Edited by Jawwad_Paracha on 09-30-2009 09:15 PM
Routing

Re: Juniper-Cisco Vrrp problem

10.01.09   |  
‎10-01-2009 02:30 AM

Hi,

 

what is IP address on the physical interface (J-series, )? If it is not 1.1.1.1 then Bens answer should help you. 

 

Kind Regards

Michael Pergament

Routing

Re: Juniper-Cisco Vrrp problem

10.09.09   |  
‎10-09-2009 08:24 AM

can you do show vrrp on both routers and provide output here

 

may be router does not see each other so they both remained in active state?