2960X stack switch with WD Storage ( unable achieve dual 1000M link)

[KIAN SHUEN LIM]

Hi all,

This would be a weird and specific scenario. We are running 2960X in stacking, IOS version 15.0(2)EX5

There is a WD MyCloud EX4 NAS storage come with 2 gigabit ports.

No matter what is the network configuration and load balancing mode (adaptive load balance / 802.3ad / non-redundancy) on EX4, we notice the port is running

LAN1  (EX4) connect to gi1/0/2 (100M,full)

LAN2 (EX4) connect to gi2/0/2 (1000M, full)

Yes we have tried to swap the cable and replace new CAT6 cable ( 5m), the behavior is still the same.

While I hardcode the link speed on EX4 to 1000:

GI1/0/2 ( disconnect)

GI2/0/2 ( 1000M full)

Initially we thought it was EX4's issue, so i connect LAN1 and LAN2 to another HP 1910-48G switch.

It is magically working fine, both port connected at 1000M full.

port configuration:

switchport mode access

switchport nonegotiate

no cdp enable

spanning-tree portfast

spanning-tree bpdufilter enable

spanning-tree guard root

switchport port-security

switchport port-security aging time 10

tried disable port-security but it wont help

[paul driver]

Hello

And both switches in that 2960 stack support 1gb correct? -

If you swap the connections around do you still get the same output?

Have you tried to defaulting the ports

conf t

default int range gig1/0/2 , gig2/0/2

int range gig1/0/2 , gig2/0/2
siwtchport host

By the way  do you really need spanning-tree bpdufilter enabled on the interface?
res

Paul

[KIAN SHUEN LIM]

Thanks Paul for the hint,

I default the port, unfortunately the outcome it still same.

CORE-SWITCH#show running-config interface gi1/0/2
Building configuration...

Current configuration : 38 bytes
!
interface GigabitEthernet1/0/2
end

CORE-SWITCH#show running-config interface gi2/0/2
Building configuration...

Current configuration : 38 bytes
!
interface GigabitEthernet2/0/2
end

CORE-SWITCH#show int gi1/0/2 controller
GigabitEthernet1/0/2 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is 1cde.a789.3d02 (bia 1cde.a789.3d02)
  MTU 9198 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 17:03:28, output 00:00:01, output hang never
  Last clearing of "show interface" counters 1w0d
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 1000 bits/sec, 2 packets/sec
  5 minute output rate 16000 bits/sec, 8 packets/sec
     9693 packets input, 695032 bytes, 0 no buffer
     Received 139 broadcasts (86 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 86 multicast, 0 pause input
     0 input packets with dribble condition detected
     850225 packets output, 155691328 bytes, 0 underruns
CORE-SWITCH#show inter gigabitEthernet 2/0/2

GigabitEthernet2/0/2 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is 1cde.a7ac.9382 (bia 1cde.a7ac.9382)
  MTU 9198 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:12, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 13000 bits/sec, 11 packets/sec
     2707180010 packets input, 3008608637999 bytes, 0 no buffer
     Received 193618 broadcasts (183830 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 183830 multicast, 0 pause input
     0 input packets with dribble condition detected
     1928180072 packets output, 1976470705058 bytes, 0 underruns
     0 output errors, 0 collisions, 6 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

however when I unplug 1/0/2 and plug to 2/0/24

CORE-SWITCH(config)#do show int gi2/0/24
GigabitEthernet2/0/24 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is 1cde.a7ac.9398 (bia 1cde.a7ac.9398)
  MTU 9198 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:11, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 1000 bits/sec, 1 packets/sec
  5 minute output rate 121000 bits/sec, 60 packets/sec
     2872 packets input, 353627 bytes, 0 no buffer
     Received 46 broadcasts (46 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 46 multicast, 0 pause input
     0 input packets with dribble condition detected
     39631 packets output, 8988217 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
CORE-SWITCH(config)#
CORE-SWITCH(config)#do show int gi2/0/2
GigabitEthernet2/0/2 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is 1cde.a7ac.9382 (bia 1cde.a7ac.9382)
  MTU 9198 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:21, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 117000 bits/sec, 59 packets/sec
     2707182297 packets input, 3008608904018 bytes, 0 no buffer
     Received 193693 broadcasts (183902 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 183902 multicast, 0 pause input
     0 input packets with dribble condition detected
     1928216888 packets output, 1976479270029 bytes, 0 underruns
     0 output errors, 0 collisions, 6 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
CORE-SWITCH(config)#

[KIAN SHUEN LIM]

beside speed and duplex what are other configuration can effect ethernet layer?

[KIAN SHUEN LIM]

Appreciate some help up