Wednesday, February 5, 2020

Cisco 9400 - Link Flaps/Drops getting logs and alarms

I configured logging on a new Cisco 9410 v 16.9 to precisely like the Cisco 4510 switch. Hundreds of PCs, Printers, etc. which on a daily bases turn off and on, SCCM maintenance updates, blah blah blah? It makes sense not to get these logs locally and on Prime. If not my poor Cisco Prime Server would've been fried.

Not sure why I'm getting logs sent to my Switch and Prime. If I have it identical to the rest of my 4500s? is there a different behavior on the 9400 for logging? 0-7? something missing?

Cisco 9410

Feb 5 11:31:15.105: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/10, changed state to up

Feb 5 11:31:15.607: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/14, changed state to up

Feb 5 11:31:16.104: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/10, changed state to up

Feb 5 11:31:16.352: %LINK-3-UPDOWN: Interface GigabitEthernet3/0/24, changed state to up

Feb 5 11:31:17.351: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet3/0/24, changed state to up

Feb 5 11:31:18.512: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/19, changed state to up

Feb 5 11:31:19.412: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/29, changed state to up

Feb 5 11:31:19.512: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/19, changed state to up

Feb 5 11:31:20.412: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/29, changed state to up

Cisco 4500

Syslog logging: enabled (0 messages dropped, 1 messages rate-limited, 0 flushes, 0 overruns, xml disabled, filtering disabled)

No Active Message Discriminator.

No Inactive Message Discriminator.

Console logging: level critical, 0 messages logged, xml disabled,

filtering disabled

Monitor logging: level critical, 0 messages logged, xml disabled,

filtering disabled

Buffer logging: level notifications, 415949 messages logged, xml disabled,

filtering disabled

Exception Logging: size (8192 bytes)

Count and timestamp logging messages: disabled

Persistent logging: disabled

No active filter modules.

Trap logging: level warnings, 415840 message lines logged

Logging to 1.1.1.1 (udp port 514, audit disabled,

Cisco 4500 is not generating any logs or Prime alarms event though you see flaps.

DTP information for GigabitEthernet1/0/24:

TOS/TAS/TNS: ACCESS/OFF/ACCESS

TOT/TAT/TNT: 802.1Q/802.1Q/802.1Q

Neighbor address 1: 000000000000

Neighbor address 2: 000000000000

Hello timer expiration (sec/state): never/STOPPED

Access timer expiration (sec/state): never/STOPPED

Negotiation timer expiration (sec/state): never/STOPPED

Multidrop timer expiration (sec/state): never/STOPPED

FSM state: S1:OFF

# times multi & trunk 0

Enabled: no

In STP: no

Statistics

0 packets received (0 good)

0 packets dropped

0 nonegotiate, 0 bad version, 0 domain mismatches,

0 bad TLVs, 0 bad TAS, 0 bad TAT, 0 bad TOT, 0 other

0 packets output (0 good)

0 native, 0 software encap isl, 0 isl hardware native

0 output errors

0 trunk timeouts

0 link ups

119 link downs, last link down on Wed Feb 05 2020, 06:30:57



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