D-Link DXS-3600-EM-8T CLI Guide - Page 364

Usage Guideline DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide This command is used to configure LDP loop detection. The LDP loop detection mechanism makes use of the Path Vector and Hop Count TLVs carried by the label request and label mapping messages to detect looping LSPs. Note: If LDP is running, configuring loop detection will lead to LDP sessions restart. Example This example shows how to enable LDP loop detection. DXS-3600-32S#configure terminal DXS-3600-32S(config)# mpls label protocol ldp DXS-3600-32S(config-mpls-router)#loop-detection 38-23 max-hop-count This command is used to configure the maximum hop count allowed for loop detection. Use the no form of this command to restore the default value. max-hop-count VALUE no max-hop-count Parameters VALUE Specifies the maximum hop count allowed for loop detection. The range is 1-255. Default Command Mode Command Default Level Usage Guideline The default value is 254. MPLS Router Configuration Mode. Level: 15. The hop count value is valid with the loop detection configured. If the hop count value in the label mapping message or the label request message of LDP is greater than the configured value, it is deemed that a loop occurs. Example This example shows how to configure the maximum hop count to 30. DXS-3600-32S#configure terminal DXS-3600-32S(config)# mpls label protocol ldp DXS-3600-32S(config-mpls-router)#max-hop-count 30 38-24 max-path-vector This command is used to configure the maximum path vector value allowed for loop detection. Use the no form of this command to restore the default value. mpls ldp max-path-vector VALUE no mpls ldp max-path-vector Parameters VALUE Specifies the maximum path vector value. The range is 1-255. Default Command Mode Command Default Level The default value is 254. MPLS Router Configuration Mode. Level: 15. 356