Hi One think I've omit to say is that BGP is over a LACP with currently just one interface 100 Gbs.
I see that the issue is triggered on Cisco when eth interface seems to go in Initializing state: 2024 Feb 9 16:39:36 NEXUS1 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel101 is down (No operational members) 2024 Feb 9 16:39:36 NEXUS1 %ETHPORT-5-IF_DOWN_PARENT_DOWN: Interface port-channel101.2303 is down (Parent interface is down) 2024 Feb 9 16:39:36 NEXUS1 %BGP-5-ADJCHANGE: bgp- [xxx] (xxx) neighbor 172.16.6.17 Down - sent: other configuration change 2024 Feb 9 16:39:36 NEXUS1 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel101: first operational port changed from Ethernet1/44 to none 2024 Feb 9 16:39:36 NEXUS1 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel101: Ethernet1/44 is down 2024 Feb 9 16:39:36 NEXUS1 %ETHPORT-5-IF_BANDWIDTH_CHANGE: Interface port-channel101,bandwidth changed to 100000 Kbit 2024 Feb 9 16:39:36 NEXUS1 %ETHPORT-5-IF_DOWN_INITIALIZING: Interface Ethernet1/44 is down (Initializing) 2024 Feb 9 16:39:36 NEXUS1 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel101 is down (No operational members) 2024 Feb 9 16:39:36 NEXUS1 %ETHPORT-5-SPEED: Interface port-channel101, operational speed changed to 100 Gbps 2024 Feb 9 16:39:36 NEXUS1 %ETHPORT-5-IF_DUPLEX: Interface port-channel101, operational duplex mode changed to Full 2024 Feb 9 16:39:36 NEXUS1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface port-channel101, operational Receive Flow Control state changed to off 2024 Feb 9 16:39:36 NEXUS1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface port-channel101, operational Transmit Flow Control state changed to off 2024 Feb 9 16:39:39 NEXUS1 %ETH_PORT_CHANNEL-5-PORT_UP: port-channel101: Ethernet1/44 is up 2024 Feb 9 16:39:39 NEXUS1 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel101: first operational port changed from none to Ethernet1/44 2024 Feb 9 16:39:39 NEXUS1 %ETHPORT-5-IF_BANDWIDTH_CHANGE: Interface port-channel101,bandwidth changed to 100000000 Kbit 2024 Feb 9 16:39:39 NEXUS1 %ETHPORT-5-IF_UP: Interface Ethernet1/44 is up in Layer3 2024 Feb 9 16:39:39 NEXUS1 %ETHPORT-5-IF_UP: Interface port-channel101 is up in Layer3 2024 Feb 9 16:39:39 NEXUS1 %ETHPORT-5-IF_UP: Interface port-channel101.2303 is up in Layer3 2024 Feb 9 16:39:43 NEXUS1 %BGP-5-ADJCHANGE: bgp- [xxx] (xxx) neighbor 172.16.6.17 Up Cheers James Il giorno dom 11 feb 2024 alle ore 11:12 Gert Doering <[email protected]> ha scritto: > Hi, > > On Sun, Feb 11, 2024 at 11:08:29AM +0100, james list via cisco-nsp wrote: > > we notice BGP flaps > > Any particular error message? BGP flaps can happen due to many different > reasons, and usually $C is fairly good at logging the reason. > > Any interface errors, packet errors, ping packets lost? > > "BGP flaps" *can* be related to lower layer issues (so: interface counters, > error counters, extended pings) or to something unrelated, like "MaxPfx > exceeded"... > > gert > -- > "If was one thing all people took for granted, was conviction that if you > feed honest figures into a computer, honest figures come out. Never > doubted > it myself till I met a computer with a sense of humor." > Robert A. Heinlein, The Moon is a Harsh > Mistress > > Gert Doering - Munich, Germany > [email protected] > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
