Hi Leo,
Thank you for getting back with your questions.We are only observing that the cdp neighborship flaps and comes up within 121 sec on Nexus 7k switches,without any link down alarms. However the customer faces a downtime during this period.No logs are observed on the 3750 switch
Is this possible, if only CDP flaps why should there be an outage during that period. The speed and duplex settings have been hardcoded to full and 100 mpbs
The link between Nexus and 3750, is it copper or fibre optic?
Fibre optic
The exact model is 3750e.
Show interface Ethernet2//2
R1## sh int eth2/2
Ethernet2/2 is up
admin state is up, Dedicated Interface
Hardware: 10/100/1000 Ethernet, address: 4055.4015.b674(bia 30e4.dbc1.05b0)
Description: ***Connected to 3750 Internet Address is 10.1.1.1/30
MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec
reliability 255/255, txload 11/255, rxload 28/255
Encapsulation ARPA, medium is broadcast
Port mode is routed
100 Mb/s full-duplex,
Beacon is turned off
Auto-Negotiation is turned on
Input flow-control is off, output flow-control is off
Auto-mdix is turned on
Switchport monitor is off
EtherType is 0x8100
EEE (efficient-ethernet) : n/a
Last link flapped 2d17h
Last clearing of "show interface" counters never
4 interface resets
Load-Interval #1: 30 seconds
30 seconds input rate 11224580 bits/sec, 1112 packets/sec
30 seconds output rate 4332124 bits/sec, 1140 packets/sec
Load-Interval #2: 5 minute (300 seconds)
300 seconds input rate 11433944 bits/sec, 1317 packets/sec
300 seconds output rate 4060360 bits/sec, 1014 packets/sec
L3 in Switched:
ucast: 4673149810 pkts, 594555598148 bytes - mcast: 108 pkts, 7488 bytes
L3 out Switched:
ucast: 3000051974 pkts, 913035545316 bytes - mcast: 0 pkts, 0 bytes
RX
4674311181 unicast packets 71666 multicast packets 276 broadcast packets
4674394567 input packets 5945608808888 bytes
0 jumbo packets 0 storm suppression packets
0 runts 0 giants 0 CRC/FCS 0 no buffer
0 input error 0 short frame 0 overrun 0 underrun 0 ignored
0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop
0 input with dribble 0 input discard
204 Rx pause
TX
3000206964 unicast packets 71523 multicast packets 23 broadcast packets
3000278687 output packets 913067890991 bytes
0 jumbo packets
0 output error 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble 0 output discard
0 Tx pause
