Dell Force10 S4820T S4820T Configuration Guide - Page 89

Link trace messages carry a unicast target address (the MAC address of an MIP or MEP) inside a multicast frame. The destination group address is based on the MD level of the transmitting MEP (01:80:C2:00:00:3[8 to F]). The MPs on the path to the target MAC address reply to the LTM with an LTR, and relays the LTM towards the target MAC until the target MAC is reached or TTL equals 0. Task Command Syntax Send a Linktrace message. Since the LTM is a Multicast message sent to the entire ME, there is no need to specify a destination. traceroute ethernet domain Command Mode EXEC Privilege Link Trace Cache After a Link Trace command is executed, the trace information can be cached so that you can view it later without retracing. Task Command Syntax Enable Link Trace caching. Set the amount of time a trace result is cached. Set the size of the Link Trace Cache. Display the Link Trace Cache. traceroute cache traceroute cache hold-time minutes Default: 100 minutes Range: 10-65535 minutes traceroute cache size entries Default: 100 Range: 1 - 4095 entries show ethernet cfm traceroute-cache FTOS#show ethernet cfm traceroute-cache Command Mode CONFIGURATION ETHERNET CFM ETHERNET CFM EXEC Privilege Traceroute to 00:01:e8:52:4a:f8 on Domain Customer2, Level 7, MA name Test2 with VLAN 2 Hops Host IngressMAC Ingr Action Relay Action Next Host Egress MAC Egress Action FWD Status 4 00:00:00:01:e8:53:4a:f8 00:01:e8:52:4a:f8 IngOK 00:00:00:01:e8:52:4a:f8 Delete all Link Trace Cache entries. clear ethernet cfm traceroute-cache RlyHit Terminal MEP EXEC Privilege 802.1ag | 89