loopback

  • Published on Sep 4, 2025
  • 2 minute(s) read
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loopback edit

loopback edit - Edit an OAM loopback configuration

Description:

loopback edit allows you to edit OAM loopback configurations.

Syntax:

loopback edit <instance-name> {{timeout <decimal>} |
                { type {iometrix-l1 | exfo-l2 | exfo-l3 | anacise-l2 | 
                anacise-l3 | custom}} |
                { state {enable | disable}} |
                { filter {l2 | ipv4 | ipv6} <filter-name>}  |
                { swap_mac {enable | disable}}  |
                { swap-ip {enable | disable}} |
                { swap-port {enable | disable}} |
                { drop-opposite-traffic {enable | disable}} |
                { remote-lpbk-acterna {enable | disable}} |
                { remote-lpbk-sunrise {enable | disable}} |
                { remote-lpbk-veex {enable | disable}} |
                { remote-lpbk-oam {enable | disable}} |
                { discovery-lpbk {enable | disable}} |
                { tagged-cmds {enable | disable} }} |
                { persistent {enable | disable} }} |

Parameters:

Parameter Description
<instance> <string>
<filter-name> <string>
type Set loopback type to:
  • iometrix-l1: Loop back all frames that have a destination MAC address of 00:30:79:FF:FF:FF.
  • exfo-l2: Loop back all frames that have a source MAC OUI of 00:03:01.
  • exfo-l3: Loop back all UDP echo service packets.
  • anacise-l2: Loop back all frames that have a source MAC OUI of 00:18:75.
  • anacise-l3: Loop back all UDP echo service packets.
  • custom: Loop back all traffic that matches a user-defined filter.
timeout Set a timeout period for the loopback to stay active.
state Enable or disable the OAM loopback.
filter Specify an associated filter type and name.
swap-mac Enable or disable MAC address swapping.
swap-ip Enable or disable IP address swapping.
swap-port Enable or disable port swapping.
drop-opposite-traffic Enable or disable dropping of opposite traffic.
remote-lpbk-acterna Enable or disable remote loopback for JDSU/Acterna.
remote-lpbk-sunrise Enable or disable remote loopback for Sunrise.
remote-lpbk-veex Enable or disable remote loopback for VeEX.
remote-lpbk-oam Enable or disable remote loopback for OAM 802.3ah.
discovery-lpbk Enable (accept) or disable (discard) JDSU/Acterna discovery loopback commands.
tagged-cmds Enable (accept) or disable (discard) tagged loopback commands.
persistent Enable or disable loopback at startup time. This option can only be set for manual loopbacks with no timeouts.

Note: swap-* actions apply only to custom loopbacks (user defined filter).

loopback show

loopback show - Show an OAM loopback configuration

Description:

loopback show allows you to see the configuration of the OAM loopback.

Syntax:

loopback show [<instance-name>]

Parameters:

Parameter Description
<instance-name> <string>

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