Hello chaps,
I've been strugling for last two days with something really strange. I have Nexus3064 installed with two SFPs (GLC-SX). These are connected via 2m patch cable to vmware machine and physically terminated on Solarflare adapter.
The issue is that these links are reported "down" by nexus, where the Vmware reports them as "connected". If I go to the switch and shutdown both ports - VMware immediatelly reacts with "link failure" message.. (I've never managed to transfer even a single bit of data thru any of these links)
Here is some output from Nexus:
switch# show int br
Eth1/2 45 eth access down Link not connected 1000(D) --
Eth1/3 100 eth access down Link not connected 1000(D) --
switch# show int eth 1/3 capabilities
Ethernet1/3
Model: N3K-C3064PQ-SUP
Type (SFP capable): 1000base-SX
Speed: 100,1000,10000
Duplex: full
Trunk encap. type: 802.1Q
Channel: yes
Broadcast suppression: percentage(0-100)
Flowcontrol: rx-(off/on),tx-(off/on)
Rate mode: none
QOS scheduling: rx-(6q1t),tx-(1p6q0t)
CoS rewrite: no
ToS rewrite: no
SPAN: yes
UDLD: yes
Link Debounce: yes
Link Debounce Time: yes
MDIX: no
Pvlan Trunk capable: no
TDR capable: no
Port mode: Routed,Switched
POE capable: no
switch# show int eth 1/3 transceiver
Ethernet1/3
transceiver is present
type is 1000base-SX
name is CISCO-FINISAR
part number is FTLF8519P2BCL-CS
revision is 0000
serial number is FNS11010A5W
nominal bitrate is 1300 MBit/sec
Link length supported for 50/125um fiber is 550 m
Link length supported for 62.5/125um fiber is 270 m
cisco id is --
cisco extended id number is 4
switch# show run int eth 1/3
interface Ethernet1/3
description server 2
switchport access vlan 100
speed 1000
duplex full
switch# show int eth 1/3
Ethernet1/3 is down (Link not connected)
Hardware: 100/1000/10000 Ethernet, address: 0005.73fb.802a (bia 0005.73fb.802a)
Description: server 2
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA
Port mode is access
full-duplex, 1000 Mb/s, media type is 1G
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 never
Last clearing of "show interface" counters 00:22:56
30 seconds input rate 0 bits/sec, 0 bytes/sec, 0 packets/sec
30 seconds output rate 0 bits/sec, 0 bytes/sec, 0 packets/sec
Load-Interval #2: 5 minute (300 seconds)
input rate 0 bps, 0 pps; output rate 0 bps, 0 pps
RX
0 unicast packets 0 multicast packets 0 broadcast packets
0 input packets 0 bytes
0 jumbo packets 0 storm suppression packets
0 giants 0 input error 0 short frame 0 overrun 0 underrun
0 watchdog 0 if down drop
0 input with dribble 0 input discard(includes ACL drops)
0 Rx pause
TX
0 unicast packets 0 multicast packets 0 broadcast packets
0 output packets 0 bytes
0 jumbo packets
0 output errors 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble
0 Tx pause
0 interface resets
switch# show vlan id 100
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
100 DMZ-100 active Eth1/1, Eth1/3
There is nothing in system log. Furthermore, according to the syslog that interface (eth1/3) has never been UP. I tried to physically plug/unplug the SFPs (because I've read somewhere that this might cause some troubles) but nothing helped..
Unfortunatelly - there is no longer 'no keepalive' command on nexus, which could help me to bring the interface up.. Does anyone know how can I tell to nexus not to relay on NLP/FLP in order to bring the interface up? :s
Any thoughts are more than welcome!
