Hi Abel, you should be able to identify a loop by checking incoming and outgoing cells. Do the counters increment equally? This also works to identify a local loop on an Ethernet link. There should also be a flag when checking "show interface x/y/z extensive (have a look at line 4):
u...@host> show interfaces extensive ct1-4/2/0:7:1 Physical interface: ct1-4/2/0:4:1, Enabled, Physical link is Up Interface index: 305, SNMP ifIndex: 2410, Generation: 640 Link-level type: Controller, MTU: 1504, Clocking: Internal, Speed: T1, Loopback: None, FCS: 16, Framing: ESF, Parent: coc1-4/2/0:7 (Index 304) Device flags : Present Running Interface flags: Point-To-Point SNMP-Traps Link flags : None Kind regards, Hendrik Am 27.01.2010 um 17:54 schrieb Abel Alejandro: > Hello, > > Is it possible to know if there is a loopback on a T1 interface on a > Juniper? > If we need to verify if there is a loopback we activate a BERT test and > if the BERT synchronizes > then we know there is a loopback but I am wondering if there is an > easier way to verify this. > > Regards, > Abel. > > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp > _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
