[c-nsp] Question on ISIS Cisco

[Harold Ritter]

Hi Olivier,

You can simply change the metric on the backup link to be higher than the default that is equal to 10.

for instance:

interface gig1/3
 isis metric 11


Regards

Le 2011-08-04 à 13:22, Olivier CALVANO a écrit :

> Hello,
> 
> I'm looking for information on configuring ISIS
> on cisco 6500/Sup720-3BXL:
> 
> I have two Cisco 6500/Sup720-3BXL connected by
> Layer 2 link of 1 Gbit.
> 
> My config:
> 
> C6500-1:
> 
> interface GigabitEthernet1/2
> mtu 2000
> ip address 192.168.100.1 255.255.255.252
> ip router isis
> speed nonegotiate
> mpls label protocol ldp
> tag-switching ip
> clns mtu 1500
> 
> router isis
> net 49.0001.0000.0000.0424.00
> is-type level-2-only
> metric-style wide
> redistribute connected
> 
> 
> 
> 
> C6500-2:
> 
> interface GigabitEthernet3/2
> mtu 2000
> ip address 192.168.100.2 255.255.255.252
> ip router isis
> speed nonegotiate
> mpls label protocol ldp
> mpls ip
> 
> router isis
> net 49.0001.0000.0000.0421.00
> is-type level-2-only
> metric-style wide
> redistribute connected
> !
> 
> 
> 
> 
> Soon, I will add a new link between the two for backup.
> This link is on port Gigabit but there are only 100 Mbits of Commit
> I would like the cisco C6500 use it only on the 1 Gb link does not work
> more.
> 
> I will add in config:
> 
> C6500-1:
> 
> interface GigabitEthernet1/3
> mtu 2000
> ip address 192.168.50.1 255.255.255.252
> ip router isis
> speed nonegotiate
> mpls label protocol ldp
> tag-switching ip
> clns mtu 1500
> 
> 
> C6500-2:
> 
> interface GigabitEthernet3/3
> mtu 2000
> ip address 192.168.50.2 255.255.255.252
> ip router isis
> speed nonegotiate
> mpls label protocol ldp
> mpls ip
> 
> 
> How can I do to make it a priority is having an link compared to another?
> 
> Thank you in advance
> Olivier
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Harold Ritter
Directeur Technique/Technical Leader
Advanced Services Central Engineering
CCIE 4168 (R&S, SP)

harold at cisco.com
Téléphone: 514 847 6856

Les Systèmes Cisco 
1800 McGill College
Suite 700
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Canada