Dell S4820T, Configuration Manual

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• Set the size of the Link Trace Cache.
ETHERNET CFM mode
traceroute cache size entries
The default is 100 .
The range is from 1 to 4095 entries.
• Display the Link Trace Cache.
EXEC Privilege mode
show ethernet cfm traceroute-cache
• Delete all Link Trace Cache entries.
EXEC Privilege mode
clear ethernet cfm traceroute-cache
Example of Viewing the Link Trace Cache
Dell#show ethernet cfm traceroute-cache
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 RlyHit
00:00:00:01:e8:52:4a:f8 Terminal MEP
Enabling CFM SNMP Traps
An SNMP trap is sent only when one of the five highest priority defects occur.
Table 7. Five Highest Priority Defects
Priority Defects Trap Message
Cross-connect defect
%ECFM-5-ECFM_XCON_ALARM: Cross connect
fault detected by MEP 1 in Domain
customer1 at Level 7 VLAN 1000
Error-CCM defect
%ECFM-5-ECFM_ERROR_ALARM: Error CCM
Defect detected by MEP 1 in Domain
customer1 at Level 7 VLAN 1000
MAC Status defect
%ECFM-5-ECFM_MAC_STATUS_ALARM: MAC
Status Defect detected by MEP 1 in
Domain provider at Level 4 VLAN 3000
Remote CCM defect
%ECFM-5-ECFM_REMOTE_ALARM: Remote CCM
Defect detected by MEP 3 in Domain
customer1 at Level 7 VLAN 1000
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802.1ag