Hello Guys
We Are facing an issue with Duplex Match. error in nexus 5k
Our Nexus 5k Switch continously throwing Duplex mismtach error on Logs.
2013 Nov 9 07:53:24 FRMA_BK2_CSN5K_02 %CDP-4-DUPLEX_MISMATCH: Duplex mismatch discovered on Ethernet1/11, with LAGInterface0/3/1
2013 Nov 9 07:54:24 FRMA_BK2_CSN5K_02 last message repeated 8 times
2013 Nov 9 07:56:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 07:58:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:00:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:02:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:04:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:06:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:08:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:10:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:12:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:14:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:16:24 FRMA_BK2_CSN5K_02 last message repeated 16 times
2013 Nov 9 08:18:22 FRMA_BK2_CSN5K_02 last message repeated 15 times
The interface is connected to Cisco Wireless lan controller(5508) using port-channel. Other interface in Port channel is not facing an Issue.
This interface is hardcoded with Speed 1000. Same config on WLC also Speed 1000. No ipunt errors observed in the interfaces
But in Switch cdp this interface is showing as Half duplex and flooding the 5k with logs
Please find the Interface configs & CDP outputs,
interface port-channel124
description Controller Wireless 5508
switchport mode trunk
spanning-tree bpduguard enable
speed 1000
storm-control broadcast level 80.00
storm-control multicast level 80.00
vpc 124
interface Eth 1/10 & 1/11 is binded in port channel 124.
Eth 1/10 --> dont have any Logs and showing full duplex in CDP.
Eth 1/11 --> Having Logs for duplex mismtach and showing half duplex
interface Ethernet1/10
description Controller Wireless 5508 - Port 1
switchport mode trunk
speed 1000
storm-control broadcast level 80.00
storm-control multicast level 80.00
channel-group 124
interface Ethernet1/11
description Controller Wireless 5508 - Port 2
switchport mode trunk
speed 1000
storm-control broadcast level 80.00
storm-control multicast level 80.00
channel-group 124
FRMA_BK2_CSN5K_02# sh int eth 1/10
Ethernet1/10 is up
Hardware: 1000/10000 Ethernet, address: 547f.ee33.d031 (bia 547f.ee33.d031)
Description: Controller Wireless 5508 - Port 1 - 10.80.82.240
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA
Port mode is trunk
full-duplex, 1000 Mb/s, media type is 10G
Beacon is turned off
Input flow-control is off, output flow-control is off
Rate mode is dedicated
Switchport monitor is off
EtherType is 0x8100
Last link flapped 16week(s) 6day(s)
Last clearing of "show interface" counters 35w2d
30 seconds input rate 6194968 bits/sec, 1211 packets/sec
30 seconds output rate 4498096 bits/sec, 1189 packets/sec
Load-Interval #2: 5 minute (300 seconds)
input rate 4.81 Mbps, 875 pps; output rate 3.60 Mbps, 863 pps
RX
2055924941 unicast packets 547924 multicast packets 1043625 broadcast pack
ets
2057516490 input packets 1047388804413 bytes
82164348 jumbo packets 0 storm suppression bytes
0 runts 0 giants 0 CRC 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
0 Rx pause
TX
2407546704 unicast packets 558419255 multicast packets 2765961466 broadcas
t packets
5731927425 output packets 1625683967743 bytes
342983729 jumbo packets
0 output errors 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble 0 output discard
0 Tx pause
2 interface resets
FRMA_BK2_CSN5K_02# sh int eth 1/11
Ethernet1/11 is up
Hardware: 1000/10000 Ethernet, address: 547f.ee33.d032 (bia 547f.ee33.d032)
Description: Controller Wireless 5508 - Port 2 - 10.80.82.240
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA
Port mode is trunk
full-duplex, 1000 Mb/s, media type is 10G
Beacon is turned off
Input flow-control is off, output flow-control is off
Rate mode is dedicated
Switchport monitor is off
EtherType is 0x8100
Last link flapped 16week(s) 6day(s)
Last clearing of "show interface" counters 35w2d
30 seconds input rate 2059992 bits/sec, 712 packets/sec
30 seconds output rate 3605536 bits/sec, 680 packets/sec
Load-Interval #2: 5 minute (300 seconds)
input rate 1.44 Mbps, 485 pps; output rate 2.73 Mbps, 546 pps
RX
1742986162 unicast packets 712358 multicast packets 1587374 broadcast pack
ets
1745285894 input packets 813329974630 bytes
107173365 jumbo packets 0 storm suppression bytes
0 runts 0 giants 0 CRC 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
0 Rx pause
TX
1347189732 unicast packets 337957710 multicast packets 2429529386 broadcas
t packets
4114676828 output packets 1302894776466 bytes
308726768 jumbo packets
0 output errors 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble 0 output discard
0 Tx pause
3 interface resets
FRMA_BK2_CSN5K_02# sh cdp neighbors interface ethernet 1/11 detail
----------------------------------------
Device ID:FRMA_BK2_WLCCS5508_01_100
System Name:
Interface address(es):
IPv4 Address: 10.80.82.240
Platform: AIR-CT5508-K9, Capabilities: Host
Interface: Ethernet1/11, Port ID (outgoing port): LAGInterface0/3/1
Holdtime: 136 sec
Version:
Manufacturer's Name: Cisco Systems Inc. Product Name: Cisco Controller Product
Version: 7.0.240.0 RTOS Version: Erro Bootloader Version: 1.0.1 Build Type:
DATA + WPS + LDPE
Advertisement Version: 2
Duplex: half
----------------------------------------
Device ID:FRMA_BK2_WLCCS5508_01_100
System Name:
Interface address(es):
IPv4 Address: 10.80.82.240
Platform: AIR-CT5508-K9, Capabilities: Host
Interface: Ethernet1/11, Port ID (outgoing port): GigabitEthernet0/0/2
Holdtime: 136 sec
Version:
Manufacturer's Name: Cisco Systems Inc. Product Name: Cisco Controller Product
Version: 7.0.240.0 RTOS Version: Erro Bootloader Version: 1.0.1 Build Type:
DATA + WPS + LDPE
Advertisement Version: 2
Duplex: full
FRMA_BK2_CSN5K_02# sh cdp neighbors interface ethernet 1/10 detail
----------------------------------------
Device ID:FRMA_BK2_WLCCS5508_01_100
System Name:
Interface address(es):
IPv4 Address: 10.80.82.240
Platform: AIR-CT5508-K9, Capabilities: Host
Interface: Ethernet1/10, Port ID (outgoing port): GigabitEthernet0/0/1
Holdtime: 138 sec
Version:
Manufacturer's Name: Cisco Systems Inc. Product Name: Cisco Controller Product
Version: 7.0.240.0 RTOS Version: Erro Bootloader Version: 1.0.1 Build Type:
DATA + WPS + LDPE
Advertisement Version: 2
Duplex: full
From WLC Controller end
(Cisco Controller) >show port summary
STP Admin Physical Physical Link Link
Pr Type Stat Mode Mode Status Status Trap POE SFPType
-- ------- ---- ------- ---------- ---------- ------ ------- ------- ----------
1 Normal Forw Enable Auto 1000 Full Up Enable N/A 1000BaseTX
2 Normal Forw Enable Auto 1000 Full Up Enable N/A 1000BaseTX
What might be the issue here?
Thanks for your suggstion
