Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide ...

2IPC diagnosticsLayer 3 hitless failover with graceful restart for high availability routing in protocols such as BGPand OSPF. With these high availability features enabled, when a router experiences a failover orrestart, forwarding disruptions are minimized, and route flapping is diminished to providecontinuous service during a switchover or restart event.IPC diagnosticsInterprocess communication (IPC) is a set of techniques that manage the exchange of databetween two or more processors running on one or more computers connected by a network. IPCmethods include message passing, synchronization, shared memory, and remote procedure calls(RPCs).IPC show commandsThis section describes the show commands that display IPC information.ipc show dy-syncSyntax: ipc show dy-syncThis command displays dynamic IPC sync statistics. Command output resembles the followingexample.Brocade# ipc show dy-syncARP table sync_type=2, enabled=1b_cast: serial # 000004DA, packets 1242, msg 1242, hello=160454b_cast buf=02962862, index=20, msg_i=0u_cast 1, msg # 1, dropped (alloc failure)=0u_specific reply 0, u_specific miss 010/1:1The above is slot/cpu u_cast pkt#DAI table sync_type=30, enabled=1b_cast: serial # 00000001, packets 1, msg 2, hello=160454b_cast buf=0298B862, index=20, msg_i=0u_cast 1, msg # 2, dropped (alloc failure)=0u_specific reply 0, u_specific miss 010/1:1The above is slot/cpu u_cast pkt#Label to VRF ta sync_type=25, enabled=1b_cast: serial # 00000000, packets 0, msg 0, hello=160454b_cast buf=0296A862, index=20, msg_i=0u_cast 1, msg # 0, dropped (alloc failure)=0u_specific reply 0, u_specific miss 010/1:1The above is slot/cpu u_cast pkt#ND6 neighbor ta sync_type=12, enabled=1b_cast: serial # 000005D5, packets 1493, msg 1493, hello=160454b_cast buf=0299E862, index=20, msg_i=0u_cast 2, msg # 1, dropped (alloc failure)=0u_specific reply 0, u_specific miss 010/1:2The above is slot/cpu u_cast pkt#NHT sync_type=23, enabled=1b_cast: serial # 00000000, packets 0, msg 0, hello=160454b_cast buf=02969862, index=20, msg_i=0u_cast 118, msg # 4096, dropped (alloc failure)=038 Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide53-1002426-02