[j-nsp] Logical routers and VRRP behaviour

[Patrick Lynchehaun]

Gordon,
      See config below 2 logical routers with each having 2 tag interfaces. 

patrick# show logical-routers pat1       
interfaces {
    ge-0/2/0 {
        unit 200 {
            vlan-id 200;
            family inet {
                address 1.1.1.1/24 {
                    vrrp-group 200 {
                        virtual-address 1.1.1.3;
                        priority 100;
                    }
                }
            }
        }
        unit 201 {
            vlan-id 201;
            family inet {
                address 1.1.2.1/24 {
                    vrrp-group 201 {
                        virtual-address 1.1.2.3;
                        priority 90;
                    }
                }
            }
        }           
    }
}

[edit]
patrick# show logical-routers pat2    
interfaces {
    ge-0/2/1 {
        unit 200 {
            vlan-id 200;
            family inet {
                address 1.1.1.2/24 {
                    vrrp-group 200 {
                        virtual-address 1.1.1.3;
                        priority 90;
                    }
                }
            }
        }
        unit 201 {
            vlan-id 201;
            family inet {
                address 1.1.2.2/24 {
                    vrrp-group 201 {
                        virtual-address 1.1.2.3;
                        priority 100;
                    }
                }
            }
        }           
    }
}

[edit]
patrick# run show vrrp brief 
Interface   Unit  Group  Type  Address          Int state    VR state   Timer
ge-0/2/0        200   200    lcl   1.1.1.1          up           master     A 0.593
                         vip   1.1.1.3
ge-0/2/0        201   201    lcl   1.1.2.1          up           backup     D 3.355
                         vip   1.1.2.3
                         mas   1.1.2.2
ge-0/2/1        200   200    lcl   1.1.1.2          up           backup     D 3.014
                         vip   1.1.1.3
                         mas   1.1.1.1
ge-0/2/1        201   201    lcl   1.1.2.2          up           master     A 0.912
                         vip   1.1.2.3

Thanks,
	Patrick.

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net]On Behalf Of Gordon Smith
Sent: 27 October 2005 03:51
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] Logical routers and VRRP behaviour


Hi all,

I've got a setup where I'm doing vertical aggregation inside 2 x M20's
using logical routers. 
What I'm wondering is whether VRRP treats each logical as a separate
device i.e. if I use a tagged gig-E PIC, and each logical router has
some tagged interfaces over that gig-E, can I have one logical router as
the master vrrp device in one group, and another logical router
configured as a backup device for a different vrrp group. 

The docs state that only one group may be vrrp master on an interface,
but does that caveat apply when a physical interface is split into
multiple logical interfaces across different logical routers?

Cheers,
Gordon


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