High Availability | 389Replace a line cardIf you are replacing a line card with a line card of the same type, you may replace the card without anyadditional configuration.If you are replacing a line card with a line card of a different type, remove the card and then remove theexisting line card configuration using the command no linecard. If you do not, FTOS reports a cardmismatch (Message 6) when you insert the new card, and the installed line card has a card mismatch status.To clear this line card mismatch status and bring the line card online, specify the type of line card youinserted using the command linecard, as shown in Figure 18-7.Figure 18-7. Resolving a Line Card Type MismatchHitless BehaviorHitless Behavior is supported only on platform: c eHitless behavior is supported on E-Series ExaScale ex with FTOS 8.2.1.0. and later.Hitless is a protocol-based system behavior that makes an RPM failover on the local system transparent toremote systems. The system synchronizes protocol information on the standby and primary RPMs suchthat, the event of an RPM failover, there is no need to notify remote systems of a local state change.Message 6 Line card Mismatch Error%RPM0-P:CP %CHMGR-3-CARD_MISMATCH: Mismatch: line card 0 is type E48VB - type E48TB required%RPM0-P:CP %CHMGR-5-CARDDETECTED: Line card 0 present%RPM0-P:CP %CHMGR-3-CARD_MISMATCH: Mismatch: line card 0 is type E48VB - type E48TB requiredFTOS#show linecard all-- Line cards --Slot Status NxtBoot ReqTyp CurTyp Version Ports---------------------------------------------------------------------------0 type mismatch online E48TB E48VB 7-5-1-71 48[output omitted]FTOS(conf)#linecard 0 E48VBAug 6 14:25:22: %RPM0-P:CP %IFMGR-1-DEL_PORT: Removed port: Gi 0/0-47FTOS(conf)#Aug 6 14:25:24: %RPM0-P:CP %CHMGR-5-LINECARDUP: Line card 0 is upFTOS#show linecard all-- Line cards --Slot Status NxtBoot ReqTyp CurTyp Version Ports---------------------------------------------------------------------------0 online online E48VB E48VB 7-5-1-71 48[output omitted]
