[j-nsp] [erx] about isis pe-ce routing

金仲海 jzhonghai at gmail.com
Tue Nov 20 02:57:55 EST 2007


hi,all

I have been tring to configure is-is as pe-ce routing protocol in L3/2547
VPN and i found something puzzling.If i add" metric-style wide" after the
"router isis" command,then the route learned from MP-BGP couldn't
redistribute into IS-IS.

For example,a map like this:

                CE1-PE1-P-PE2-CE2
              /
            /
10.1.1.0/24

CE1-PE1 and CE2-PE2  using IS-IS protocol,if i add "metric-style wide",then
PE2 can learned 10.1.1.0/24 via MP-BGP and put it into the VRF which connect
to CE2,but CE2 couldn't learned 10.1.0/24.if i modify the style to narrow
from wide,then everything is ok.

I guess ERX could only change the MED of BGP to narrow style metric.but i'm
not sure that.


-- 
king
jzhonghai at gmail.com


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