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New Member

admin distance for connected routes

Hi,

I would like to change the admin distance for connected routes/networks.

Any idea how to do this?

8 REPLIES
Cisco Employee

Re: admin distance for connected routes

I'm afraid this can't be done. Can you share with us what it is that you are trying to achieve.

Thanks,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: admin distance for connected routes

Sure.

I've two catalyst 6500 which have 802.1q trunks to downstream layer 2 switches.

Upstream the catalyst 6500 switches are connected to transit service providers.

For every downstream configured vlan the cat6500 are doing hsrp.

What I want:

Both cats are receiving traffic from the upstream providers but I want due to traffic accounting & policing issue all traffic passing through one catalyst.

Any idea how to do that?

-Alex

Cisco Employee

Re: admin distance for connected routes

Alex,

what is the routing configuration between the two 6500s and the transit provider. You might be able to force the traffic one way or the other using the routing protocol.

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: admin distance for connected routes

Hi,

we have two transit providers and I'm doing load balancing based on bgp. (prepending, communities, etc.)

I want to receive traffic from transit provider B on the catalyst B.

For redundancy reasons Catalyst B has directly connected networks for every vlan and so catalyst B would forward all traffic directly to the downstream switches instead of sending all traffic via the link to catalyst A.

I know it's weired. :)

-Alex

Cisco Employee

Re: admin distance for connected routes

OK, I see it now. Each Cat6500 has a connection to one of the service provider. Right. I this case if you want to force the traffic to be forwarded to the other Cat6500, you could use PBR to base the forwarding decision on something else than the destination IP address.

Hope this helps,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: admin distance for connected routes

Hi hritter,

Would it be easier to set the standby priority and preempt on CAT_A so it keeps all the Gateway addresses?

All network traffic is passing through the virtual addresses, one CAT owns them, thus all traffic goes through it?

R/S

Dave

Cisco Employee

Re: admin distance for connected routes

The way I see the topology is that the 6500s are running BGP with two separate SPs using two different interfaces. HSRP wouldn't be a big help there.

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: admin distance for connected routes

Hi,

hsrp would only help with the traffic FROM the downstreams VLANs to the transit provider not from traffic coming from the internet towards the downstream vlans.

-Alex

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