05-25-2012 01:45 PM
Has anyone seen Fabricpath Core Interfaces between two Nexus 5596UP switches error-disabled because of missing DCBX Acks after 50mins?
I do not see interface errors and the peer is another 5500.
Both switches are running 5.1(3)N2(1) with this port config:
int e1/3
switchport mode fabricpath
! Cisco 5m Twinax cables
Log messages
2012 May 25 17:40:59 nexus1 %L3VM-5-FP_TPG_INTF_DOWN: Interface Ethernet1/3 down in fabricpath topology 0 - Interface down
2012 May 25 17:40:59 nexus1 %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/3 is down (None)
2012 May 25 17:40:59 nexus1 %ISIS_FABRICPATH-5-ADJCHANGE: isis_fabricpath-default [3365] P2P adj L1 nexus5 over Ethernet1/3 - DOWN (Delete All) on MT-0
2012 May 25 17:40:59 nexus1 %CDP-5-NEIGHBOR_REMOVED: CDP Neighbor nexus5(FOX1550GDH1) on port Ethernet1/3 has been removed
2012 May 25 17:40:59 nexus1 %LLDP-5-SERVER_REMOVED: Server with Chassis ID 547f.ee63.fa88 Port ID Eth1/1 on local port Eth1/3 has been removed
2012 May 25 17:40:59 nexus1 %ETHPORT-2-IF_DOWN_ERROR_DISABLED: Interface Ethernet1/3 is down (Error disabled. Reason:DCX-No ACK in 100 PDUs)
Robert
05-25-2012 02:30 PM
Can you send the output of
show lldp interface ethernet 1/3show lldp dcbx interface ethernet 1/3
a workaround may be to disable lldp on both sides on these physical interfaces
05-28-2012 02:25 PM
Any update ?
05-29-2012 11:53 PM
I had to build the lab from scratch for different tests... I can't do so right now. It seems to be a bug because everbody recommends either disabling LLDP globally or per interface or disabling DCBX LLDP TLVs.
04-18-2018 07:54 AM
You can check on layer 1 issue. Mine has solve by fixing the fiber cables.
Before fixing the fiber cables.
anx0110m02-anx0110c02# sh int eth1/20 transceiver details
Ethernet1/20
transceiver is present
type is 10Gbase-SR
name is CISCO-FINISAR
part number is FTLX8574D3BCL-C3
revision is A
serial number is FNS22010BHD
nominal bitrate is 10300 MBit/sec
Link length supported for 50/125um OM2 fiber is 82 m
Link length supported for 62.5/125um fiber is 26 m
Link length supported for copper is 40 m
Link length supported for 50/125um OM3 fiber is 300 m
cisco id is --
cisco extended id number is 4
cisco part number is 10-3105-01
cisco product id is SFP-10G-SR-S
cisco vendor id is V01
number of lanes 1
SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 18.77 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.32 V 3.63 V 2.97 V 3.46 V 3.13 V
Current 0.00 mA -- 13.00 mA 4.00 mA 12.50 mA 5.00 mA
Tx Power -20.00 dBm -- 21.69 dBm 8.69 dBm 18.69 dBm 12.69 dBm
Rx Power 1.36 dBm -- 22.00 dBm 6.09 dBm 18.99 dBm 10.09 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning
After fixing the fiber cables
anx0110m02-anx0110c02# sh int eth1/20 transceiver det
Ethernet1/20
transceiver is present
type is 10Gbase-SR
name is CISCO-FINISAR
part number is FTLX8574D3BCL-C3
revision is A
serial number is FNS2201058B
nominal bitrate is 10300 MBit/sec
Link length supported for 50/125um OM2 fiber is 82 m
Link length supported for 62.5/125um fiber is 26 m
Link length supported for copper is 40 m
Link length supported for 50/125um OM3 fiber is 300 m
cisco id is --
cisco extended id number is 4
cisco part number is 10-3105-01
cisco product id is SFP-10G-SR-S
cisco vendor id is V01
number of lanes 1
SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 20.12 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.30 V 3.63 V 2.97 V 3.46 V 3.13 V
Current 8.42 mA 13.00 mA 4.00 mA 12.50 mA 5.00 mA
Tx Power 17.91 dBm 21.69 dBm 8.69 dBm 18.69 dBm 12.69 dBm
Rx Power 16.81 dBm 22.00 dBm 6.09 dBm 18.99 dBm 10.09 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning
04-18-2018 07:55 AM
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide