Thanks Colin and Jeremy! Glad it isn't just me. Given the link flap it seems everything is working as it's supposed to.
Tom Krenn
Network Architect
Enterprise Architecture - Information Technology
[Hennepin County logo]
From: MICE Discuss <[log in to unmask]> On Behalf Of Jeremy Lumby
Sent: Friday, September 8, 2023 14:01
To: [log in to unmask]
Subject: [External] Re: [MICE-DISCUSS] Route Server 2
CAUTION: This email was sent from outside of Hennepin County. Unless you recognize the sender and know the content, do not click links or open attachments.
The timing lines up with a link flap that was experienced on the 4x100G between Ridgeview, and 511. The 511 switch showed a RX loss on all 4 channels simultaneously (there is not a diverse fiber path at the moment).
core-sw0(s1)#sh int po 10
Port-Channel10 is up, line protocol is up (connected)
Hardware is Port-Channel, address is 2899.3ae5.35e9
Description: Ridgeview
Ethernet MTU 9214 bytes , BW 400000000 kbit
Full-duplex, 400Gb/s
Active members in this channel: 4
... Ethernet3/35/1 , Full-duplex, 100Gb/s
... Ethernet3/36/1 , Full-duplex, 100Gb/s
... Ethernet6/35/1 , Full-duplex, 100Gb/s
... Ethernet6/36/1 , Full-duplex, 100Gb/s
Fallback mode is: off
Up 6 hours, 16 minutes, 27 seconds
2 link status changes since last clear
Last clearing of "show interface" counters 15 days, 23:15:03 ago
5 minutes input rate 8.36 Gbps (2.2% with framing overhead), 2046578 packets/sec
5 minutes output rate 36.4 Gbps (9.2% with framing overhead), 3646672 packets/sec
2857754359153 packets input, 1491272402763337 bytes
Received 2308335 broadcasts, 8733937 multicast
0 input errors, 0 input discards
5706404987428 packets output, 7487480901783768 bytes
Sent 43461213 broadcasts, 52158407 multicast
0 output errors, 0 output discards
From: MICE Discuss <[log in to unmask]> On Behalf Of Tom Krenn
Sent: Friday, September 8, 2023 1:13 PM
To: [log in to unmask]
Subject: [MICE-DISCUSS] Route Server 2
Hi all,
Anyone else noticing the route server at 206.108.255.2 / 2001:504:27::d1af:0:2 dropping out for a second or so the last few days? I'm seeing similar from both of my routers.
LC/0/0/CPU0:Sep 8 07:29:45.717 CDT: bfd_agent[173]: %L2-BFD-6-SESSION_STATE_DOWN : BFD session to neighbor 2001:504:27::d1af:0:2 on interface HundredGigE0/0/0/20 has gone down. Reason: Control timer expired
RP/0/RSP0/CPU0:Sep 8 07:29:45.718 CDT: bgp[1065]: %ROUTING-BGP-5-ADJCHANGE : neighbor 2001:504:27::d1af:0:2 Down - BFD (Bidirectional forwarding detection) session down (VRF: default) (AS: 53679)
LC/0/0/CPU0:Sep 8 07:29:45.795 CDT: bfd_agent[173]: %L2-BFD-6-SESSION_STATE_DOWN : BFD session to neighbor 206.108.255.2 on interface HundredGigE0/0/0/20 has gone down. Reason: Control timer expired
RP/0/RSP0/CPU0:Sep 8 07:29:45.797 CDT: bgp[1065]: %ROUTING-BGP-5-ADJCHANGE : neighbor 206.108.255.2 Down - BFD (Bidirectional forwarding detection) session down (VRF: default) (AS: 53679)
LC/0/0/CPU0:Sep 8 07:29:50.384 CDT: bfd_agent[173]: %L2-BFD-6-SESSION_STATE_UP : BFD session to neighbor 2001:504:27::d1af:0:2 on interface HundredGigE0/0/0/20 is up
LC/0/0/CPU0:Sep 8 07:29:50.384 CDT: bfd_agent[173]: %L2-BFD-6-SESSION_STATE_UP : BFD session to neighbor 206.108.255.2 on interface HundredGigE0/0/0/20 is up
RP/0/RSP0/CPU0:Sep 8 07:30:58.517 CDT: bgp[1065]: %ROUTING-BGP-5-ADJCHANGE : neighbor 206.108.255.2 Up (VRF: default) (AS: 53679)
RP/0/RSP0/CPU0:Sep 8 07:31:01.850 CDT: bgp[1065]: %ROUTING-BGP-5-ADJCHANGE : neighbor 2001:504:27::d1af:0:2 Up (VRF: default) (AS: 53679)
Tom Krenn
Network Architect
Enterprise Architecture - Information Technology
Office: 612-596-8994
[log in to unmask] | hennepin.us
Hennepin County Government Center
300 South 6th Street, A-190
Minneapolis, MN, 55487
[Hennepin County logo]
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