3Com MSR 30 manual Interface ima-group, Loopback, By default, IMA group interface test is disabled

120CHAPTER 2: IMA-E1/T1 INTERFACE CONFIGURATION COMMANDS

By default, IMA group interface test is disabled.

Note that:

■If you do not specify the number argument, the ima-testcommand specifies to test the link that is the first to be added to the IMA group interface.

■If you do not specify the id argument when executing the ima-testcommand, the default test mode (that is, 0xAA) is adopted.

■You can use this command to test the connectivity of a link to the rest of the IMA group by sending a test pattern over the link. This test mode is looped over all the active links at the far end and back to the transmitter. To display the connectivity test result, perform the display interface ima-groupcommand.

n E1/T1 links are bidirectional. This command tests only the connectivity of a link in its transmit direction to the other links in the IMA group in their receive direction.

Example # Send test mode 0xAB over link 0 in IMA group interface 1.

<Sysname> system-view [Sysname] interface atm 5/0 [Sysname-Atm5/0] ima ima-group 1

[Sysname-Atm5/0] interface ima-group 5/1 [Sysname-Ima-group5/1] ima-test link-number 0 pattern-id ab

interface ima-group

Syntax interface ima-groupgroup-interfacenumber

View System view

Parameter group-interfacenumber: IMA group interface number.

Description Use the interface ima-groupcommand to enter IMA group interface view.

Example # Enter IMA group interface 1 view.

<Sysname> system-view [Sysname] interface atm 5/0 [Sysname-Atm5/0] ima ima-group 1

[Sysname-Atm5/0] quit

[Sysname] interface ima-group 5/1 [Sysname-Ima-group5/1]

loopback

Syntax loopback { cell local payload remote }

undo loopback

View ATM E1/T1 interface view