AW: [j-nsp] APS/MSP 1+1 questions

[Struck, Olaf]

Hi,

to prevent the routing protocols to flap during failover, you should set the
holdtimers on the Sonet Inerfaces to 2000ms.

Regards,

Olaf

-----Ursprüngliche Nachricht-----
Von: Yu-lin Chang [mailto:ylchang at ascc.net]
Gesendet: Friday, May 23, 2003 10:44 AM
An: juniper at groupstudy.com; juniper-nsp at puck.nether.net
Betreff: [j-nsp] APS/MSP 1+1 questions


Hi,

I config two STM-1s to APS/MSP between two M routers,
one side is M160 (JUNOS 5.5R2.3) and the other side 
is a M20 (JUNOS 5.4R2.4) as following.

I have two question on the APS/MSP 1+1 protection,
  1. If the working link goes down, system does switch
     to protection link automatically, but my routing
     protocols (BGP, OSPF, RSVP) also have a up/down
     alarm. Does this normal behavior? Is it possible
     to prevent routing protocols up/down while switching?
  2. When I commit these configurations, a warning message
     says: (on M160)
          Warning: identical local address is found on 
                   default route instance, intf: so-1/0/2.0, 
                   family type: inet
          [edit interfaces so-1/0/2 unit 0 family inet 
                address 10.10.10.2/30] Warning: identical 
                local address is found on different interfaces
     Simular warning messages also show up on M20 when I commit
     his configuration.
     Does these messages correct? Or should I modify the config
     to prevent such warings? (how to?)

Thanks,
Yu-lin

---------------------------
M160
====
[interfaces]
    so-1/0/0 {
        description "#### Working-Link to M20 ####";
        clocking external;
        encapsulation frame-relay;
        sonet-options {
            path-trace m160-so-1/0/0;
            aps {
                working-circuit C1;
            }
        }
        unit 0 {
            description "### PIPE-0 ###";
            point-to-point;
            dlci 101;
            family inet {
                address 10.10.10.2/30;
            }
            family iso;
            family mpls;
        }
    }
    so-1/0/2 {
        description "#### Protection-Link to M20 ####";
        clocking external;
        encapsulation frame-relay;
        sonet-options {
            path-trace m160-so-1/0/2;
            aps {
                protect-circuit C1;
            }
        }
        unit 0 {
            description "### PIPE-0 ###";
            point-to-point;
            dlci 101;
            family inet {
                address 10.10.10.2/30;
            }
            family iso;
            family mpls;
        }
    }
--------------------------------

M20
===
[interfaces]
    so-0/3/0 {
        description "#### Working-Link to M160 ####";
        dce;
        clocking external;
        encapsulation frame-relay;
        sonet-options {
            path-trace m20-so-0/3/0;
            aps {
                working-circuit C1;
            }
        }
        unit 0 {
            description "### PIPE-0 ###";
            point-to-point;
            dlci 101;
            family inet {
                address 10.10.10.1/30;
            }
            family iso;
            family mpls;
        }
    }
    so-0/3/1 {
        description "#### Protection-Link to M160 ####";
        dce;
        clocking external;
        encapsulation frame-relay;
        sonet-options {
            path-trace m20-so-0/3/1;
            aps {
                working-circuit C1;
            }
        }
        unit 0 {
            description "### PIPE-0 ###";
            point-to-point;
            dlci 101;
            family inet {
                address 10.10.10.1/30;
            }
            family iso;
            family mpls;
        }
    }
-----------------

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