[j-nsp] Issue: CPSS (Alcatel-NewBridge Protocol) over L2circuit Martini over Ethernet MPLS Core

FAHAD ALI KHAN fahad.alikhan at gmail.com
Fri Mar 9 02:39:58 EST 2007


In our current Network Newbridge 3600 are used for Serial
Aggregation.Beforemigration to MPLS,Intercity E1s was terminated on
NB3600 and the NB3600s
were managed via NMS by Newbridge propriety management protocol
CPSS.Aftershifting E1s to MPLS nodes a UNI is created between Juniper
MPLS Node and
NB3600 over either E1 or V.35 and CPSS is carried over L2 circuit among
nodes. Refer to the bellow diagram.

[NB3600]---fr_uni---(PE1)----E1----(PE2)---fr_uni---[NB3600]----[NB NMS]
*Problem:*
There is no issue with CPSS while the conectivity b/w the two MPLS nodes is
over E1 or E3.The problem occurs when the connectivity b/w the two MPLS
nodes is over Fast Ethernet, here the CPSS is not carried over L2Circuit
even though LSP and L2 circuit at both ends are up. This was also tested
with L2 Connections. Refer to the diagram

[NB3600]---fr_uni---(PE1)----FE----(PE2)---fr_uni---[NB3600]----[NB NMS]

below is the config.

*PE1*
fe-0/0/0
description "conctd to PE2";
mtu 1546;
unit 0 {
family inet {
address 192.168.0.1/30;}
family mpls;}

e1-1/0/0
description "conctd to NB3600";
encapsulation frame-relay-ccc;
lmi {
lmi-type ansi;}
unit 0 {
encapsulation frame-relay-ccc;
point-to-point;
dlci 513;
family ccc;}

l2circuit
neighbor 192.168.1.254
interface e1-1/0/0.0 {
virtual-circuit-id 513}}

*PE2*
fe-0/0/0
description "conctd to PE1";
mtu 1546;
unit 0 {
family inet {
address 192.168.0.2/30;}
family mpls;}

e1-1/0/0
description "conctd to NB3600";
encapsulation frame-relay-ccc;
lmi {
lmi-type ansi;}
unit 0 {
encapsulation frame-relay-ccc;
point-to-point;
dlci 513;
family ccc;}
l2circuit
neighbor 192.168.0.254 {
interface e1-1/0/0.0 {
virtual-circuit-id 513;
}}

Can ay one suggest the solution?


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