[Xorp-hackers] VRRP error

Li Zhao lizhaous2000 at yahoo.com
Fri Mar 19 11:34:31 PDT 2010


This is probably you can do. 

1. #create interfaces interface eth1 vif eth1 address 10.0.0.1 prefix-length 24.

2. #create protocols vrrp interface eth1 vif eth1 vrid 100 ip 10.0.0.100
3. #create protocols vrrp interface eth1 vif eth1 vrid 100 priority 200

>show vrrp
You should see "State Master" + "Master IP 10.0.0.1"

Then you can even do the following on a second router:

4. #create interfaces interface eth1 vif eth1 address 10.0.0.2 prefix-length 24.

5. #create protocols vrrp interface eth1 vif eth1 vrid 100 ip 10.0.0.100
6. #create protocols vrrp interface eth1 vif eth1 vrid 100 priority 100

>show vrrp
You should see "State Backup" + "Master IP 10.0.0.1"

7. on two routers, use "ip addr add 10.0.0.100 dev eth1" to make kernel IP stack recognize 10.0.0.100 as local address.
8. From a third host to ping 10.0.0.100

Test switchover, you can do the following on the router-1
9. #create interfaces interface eth1 disable true
10.#create interfaces interface eth1 vif eth1 disable true

Then ">show vrrp" and "ping 10.0.0.100" should show the switch over.

Futher, you can test to use "10.0.0.100" as the endpoint of a ip tunnel to see tunnel protected... etc.


Li

--- On Fri, 3/19/10, Ben Greear <greearb at candelatech.com> wrote:

> From: Ben Greear <greearb at candelatech.com>
> Subject: Re: [Xorp-hackers] VRRP error
> To: "Li Zhao" <lizhaous2000 at yahoo.com>
> Cc: xorp-hackers at icir.org
> Date: Friday, March 19, 2010, 11:35 AM
> On 03/19/2010 07:16 AM, Li Zhao
> wrote:
> > I am attaching my fix for vrrp abort. I have done
> quite a lot real time testing on my router.
> 
> Thanks, looks good to me.  I'll push it to xorp.ct in
> a bit.
> 
> Do you have any notes on how to do at least minimal testing
> of vrrp using
> just xorp? (config-files, disconnect certain cables, etc?)
> 
> Thanks,
> Ben
> 
> -- Ben Greear <greearb at candelatech.com>
> Candela Technologies Inc  http://www.candelatech.com
> 


      



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