[f-nsp] Foundry's equivalent of Cisco's Gig X/Y.Z

[Umar Ahmed]

If you have all three links connected as layer 2 then yes you have a loop. There are many ways to mitigate against this, my preference is RSTP (rapid spanning-tree) - which is easy to run and troubleshoot. 
 
You could make the NI the root bridge and then run RSTP - you should be able to work out which is fwding and which will be discarding. You also need to decide if you want to run per vlan RSTP or a single instance of STP. Looking at your network, I would run a simple single spanning tree instance. Pm me if you want to know how to do this.
 
Umar.
 
 

________________________________

From: Vincent De Keyzer [mailto:vincent at dekeyzer.net] 
Sent: 09 February 2007 15:53
To: Umar Ahmed; foundry-nsp at puck.nether.net
Subject: RE: [f-nsp] Foundry's equivalent of Cisco's Gig X/Y.Z



Ok thanks, that what I thought.

 

Now, say there is a triangle:

 

         NI400

         /   \

        /     \

       /       \

FES12GCF------ FES12GCF

 

Port 1 of the NI400 is connected to first switch, port 2 to second switch.

 

I would then do:

 

vlan 100

 tag port eth 1/1 et 1/2

 router-interface ve100

 

Do I then need to run STP or MRP between the 3 boxes to avoid a layer 2 loop ?

 

Or is there a way to prevent the NI from switching between eth 1/1 and eth 1/2 ?

 

Vincent

 

________________________________

From: Umar Ahmed [mailto:Umar.Ahmed at vanco.co.uk] 
Sent: vendredi 9 février 2007 16:43
To: Vincent De Keyzer; foundry-nsp at puck.nether.net
Subject: RE: [f-nsp] Foundry's equivalent of Cisco's Gig X/Y.Z

 

try

 

vlan 100

tag eth (slot/port)

router-interface ve100

!

int ve 100

ip address x.x.x.x/y

 

Umar.

 

________________________________

From: foundry-nsp-bounces at puck.nether.net [mailto:foundry-nsp-bounces at puck.nether.net] On Behalf Of Vincent De Keyzer
Sent: 09 February 2007 15:18
To: foundry-nsp at puck.nether.net
Subject: [f-nsp] Foundry's equivalent of Cisco's Gig X/Y.Z

Hello,

 

question from a beginner: on a NI400, how do I do the equivalent of Cisco's

 

interface Gig X/Y.Z

 encapsulation dot1q 100

 ip address A.B.C.D M.M.M.M

 

?

 

Vincent

 



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