H3C S6520-SI Series Command Reference Manual

Also see for MS4600 Series: Troubleshooting guide Command reference

H3C S6520-SI Series Command Reference Manual Manual pdf 27 page image

21When you configure BFD MAD on a Layer 3 aggregate interface, follow these restrictions andguidelines:Category Restrictions and guidelinesBFD MAD-enabled Layer 3aggregate interface• Make sure the Layer 3 aggregate interface operates in staticaggregation mode.• Make sure the member ports in the aggregation group do not exceed themaximum number of Selected ports allowed for an aggregation group. Ifthe number of member ports exceeds the maximum number of Selectedports, some member ports cannot become Selected. BFD MAD will beunable to work correctly and its state will change to Faulty.BFD MAD VLAN• On the intermediate device (if any), assign the ports on the BFD MADlinks to the same VLAN. Do not assign the ports to an aggregateinterface. If the ports are hybrid ports, make sure these ports areuntagged members of their PVIDs.• If the intermediate device acts as a BFD MAD intermediate device formultiple IRF fabrics, assign different BFD MAD VLANs to the IRF fabrics.• Do not use the BFD MAD VLAN on the intermediate device for anypurposes other than BFD MAD.• Make sure the BFD MAD VLAN on the intermediate device contains onlyports on the BFD MAD links. Exclude a port from the BFD MAD VLAN ifthat port is not on a BFD MAD link. If you have assigned that port to allVLANs by using the port trunk permit vlan all command,use the undo port trunk permit command to exclude that portfrom the BFD MAD VLAN.BFD MAD-enabled Layer 3aggregate interface andfeature compatibilityUse only the mad bfd enable and mad ip address commands onthe BFD MAD-enabled interface. If you configure other features, both BFDMAD and other features on the interface might run incorrectly.MAD IP address• To avoid network issues, only use the mad ip address command toconfigure IP addresses on the BFD MAD-enabled interface. Do notconfigure an IP address by using the ip address command orconfigure a VRRP virtual address on the BFD MAD-enabled interface.• Make sure all the MAD IP addresses are on the same subnet.Examples# Enable BFD MAD on VLAN-interface 3. system-view[Sysname] interface vlan-interface 3[Sysname-Vlan-interface3] mad bfd enablemad enableUse mad enable to enable LACP MAD.Use undo mad enable to disable LACP MAD.Syntaxmad enableundo mad enableDefaultLACP MAD is disabled.ViewsAggregate interface view