Allows you to send out a Link Trace Message (LTM) for the specified MA from the MEP configured on the port for the specified MAC address to the end of the MA.
| mac | Enter the unique system MAC address on the port configured as a MEP for the specified MA. Enter this value in the format XX:XX:XX:XX:XX:XX. |
| up-end-point | Use this keyword to force the LTM to be send from an UP MEP if both a DOWN MEP and an UP MEP are configured on the same port. |
| port | Enter the port number of the MEP from which you are issuing the LTM. |
| domain | Enter this keyword. |
| domain_name | IEEE 802.1ag or ITU-T Y.1731 association name. |
| association | Enter this keyword. |
| association_name | Enter the name of the association from which you are issuing the ping. |
| ttl | Enter this keyword. |
| ttl | Enter the upper limit of MIPs the LTM can pass prior to reaching its destination. |
TTL default value is 64.
Use this command to send an LTM from the MEP on the port for the given MAC address. If no MEP is configured on the port, the system returns an error message.
If both an UP and DOWN MEP are configured on the same port, the system uses the DOWN MEP. If you want to use the UP MEP in this situation, enter the up-end-point keyword. After you issue the command, the system prints out the route the LTM message took.
Each MIP along the route passes the LTM along only in the direction of the path and sends a packet back to the originating MAC notifying that it passed the LTM. If the destination MAC type is configured as unicast on the association to which this MEP belongs to, link trace replies will not be received from any of the MIPs configured on the intermediate switches. If there is a MIP on the switch that originated the trace route, the MIP sends a link trace reply.
The following commands send an LTM:
1. A trace route invoked from a customer device CE1 to another customer device CE3 connected through an MPLS (Multiprotocol Label Switching) cloud (MTU1 -' PE1 'PE3), where a VPLS MIP is configured to encode a system-name, will have a response as follows:
(debug) Switch # traceroute mac 00:04:96:28:02:15 port 1 "extr_cfm5" "extr_ma" Send out Link Trace Message(LTM), collecting responses [press Ctrl-C to abort]. TTL CFM Source MAC Reply Reply Mac Port ID =============================================================================== 63 00:04:96:1e:6d:40 I F-f- 00:04:96:1e:6d:40 o-- 1:8 62 00:04:96:1e:6d:40 E F-f- 00:04:96:1e:6d:40 o-- vp100:MTU-1 61 00:04:96:1e:16:10 I F-f- 00:04:96:1e:16:10 o-- vp100:PE-1 60 00:04:96:1e:16:10 E F-f- 00:04:96:1e:16:10 o-- vp100:PE-1 59 00:04:96:1e:14:90 I F-f- 00:04:96:1e:14:90 o-- vp100:PE-3 58 00:04:96:1e:14:90 E F-f- 00:04:96:1e:14:90 o-- 1:8 57 00:04:96:28:02:15 I -h-- 00:04:96:28:02:15 o-- 1 =============================================================================== Reply Flags: (I) Ingress, (E) Egress, (F) FwdYes, (h) RlyHit,(f) RlyFDB Flags: (o) Ok, (d) Down, (b) Blocked
2. A trace route Invoked within an MPLS Cloud from MTU1 to PE3 (MTU1 -' PE1 'PE3), where a VPLS MIP is configured to encode a private-ip, will have a response as follows:
(debug) Switch # traceroute mac 00:04:96:1e:14:90 port 1:8 extr_cfm2 "extr_ma" Send out Link Trace Message(LTM), collecting responses [press Ctrl-C to abort]. TTL CFM Source MAC Reply Reply Mac Port ID =============================================================================== 63 00:04:96:1e:6d:40 E F-f- 00:04:96:1e:6d:40 o-- vp100:3.3.3.3 62 00:04:96:1e:16:10 I F-f- 00:04:96:1e:16:10 o-- vp100:1.1.1.1 61 00:04:96:1e:16:10 E F-f- 00:04:96:1e:16:10 o-- vp100:5.5.5.5 60 00:04:96:1e:14:90 I F-f- 00:04:96:1e:14:90 o-- vp100:3.3.3.3 59 00:04:96:1e:14:90 E -h-- 00:04:96:1e:14:90 o-- 1:8 =============================================================================== Reply Flags: (I) Ingress, (E) Egress, (F) FwdYes, (h) RlyHit,(f) RlyFDB Flags: (o) Ok, (d) Down, (b) Blocked
If in PE1 alone, a VPLS MIP is configured to encode a system name, the response will be as follows:
(debug) Switch # traceroute mac 00:04:96:1e:14:90 port 1:8 extr_cfm2 "extr_ma" Send out Link Trace Message(LTM), collecting responses [press Ctrl-C to abort]. TTL CFM Source MAC Reply Reply Mac Port ID =============================================================================== 63 00:04:96:1e:6d:40 E F-f- 00:04:96:1e:6d:40 o-- vp100:3.3.3.3 62 00:04:96:1e:16:10 I F-f- 00:04:96:1e:16:10 o-- vp100:PE1 61 00:04:96:1e:16:10 E F-f- 00:04:96:1e:16:10 o-- vp100:PE1 60 00:04:96:1e:14:90 I F-f- 00:04:96:1e:14:90 o-- vp100:3.3.3.3 59 00:04:96:1e:14:90 E -h-- 00:04:96:1e:14:90 o-- 1:8 =============================================================================== Reply Flags: (I) Ingress, (E) Egress, (F) FwdYes, (h) RlyHit,(f) RlyFDB Flags: (o) Ok, (d) Down, (b) Blocked
This command was first available in ExtremeXOS 11.4.
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