![]() In the preceding example, remote line FDL ANSI bit loopback sends a repeating 16-bit ESF data link code word (of 00001110 11111111) to the remote end requesting that it enter into a network line loopback. Router(config-if)# loop remote line fdl ansi Set the first T1 into remote line FDL ANSI bit loopback, as follows: In the preceding example, remote line inband loopback sends a repeating 5-bit inband pattern (of 00001) to the remote end requesting that it enter into a network line loopback. Router(config-if)# loop remote line inband Set the first T1 into remote line inband loopback, as follows: The syntax of the loopback remote command follows: loopback In the preceding example, network payload loopback loops just the payload data back toward the network at the T1 framer. Router(config-if)# loopback network payload Set the first T1 into network payload loopback as follows: Router# config t In the preceding example, network line loopback loops the data back toward the network (before the T1 framer). Set the first T1 into network line loopback as follows: Router# config t In the preceding example, local loopback loops the router output data back toward the router at the T1 framer and sends an AIS signal out toward the network. Set the first T1 into local loopback as follows: Router# config tĮnter configuration commands, one per line. Specify the loopback format using the loopback [ localĮxamples of specific loopback modes follow: There are three main loopback modes as follows: local, network (both line and payload), and remote (line and payload). In the first case, verification is bidirectional and loopback support is required on the remote end. Test pattern is analyzed by the remote end. Test sequence is initiated from the local end. ![]() 要求運營商A把loop1去掉,在他們和運營商B的交接處(demarc point)放置軟環,面向siteBĥ. Remote end is configured with the loopback and analysis of the test pattern is performed at local end as well. Diagnose a Suspected Hardware Problem with a Fast Ethernet or Gigabit Ethernet Interface. ![]() originated, coded, and tested optics solve your network challenges without hassle.工作上常常會遇到運營商提供的專線斷網的情況,在排障的時候經常會用環路測試來斷定故障的位置。 There are three main loopback modes as follows: local, network (both line and payload), and remote (line and payload).
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