Solved: Re: Cisco Catalyst 2960S-48FPS-L connected via fiber to Allied T

DavidReisner · ‎04-18-2012

Hello,

I want to connect a Catalyst 2960s-48FPS-L switch via SFP trancievers to an AT-9924SP switch. I have a Cisco GLC-FE-100FX tranciever in the Cisco and an AT-SPFX/2 100FX tranciever in the Allied Telesis.

Here is my problem:

RTS-SW4A-01#show int gi 1/0/52

GigabitEthernet1/0/52 is up, line protocol is up (connected)

Hardware is Gigabit Ethernet, address is **omitted**

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive not set

Full-duplex, 100Mb/s, link type is auto, media type is 100BaseFX-FE SFP

input flow-control is off, output flow-control is unsupported

ARP type: ARPA, ARP Timeout 04:00:00

Last input never, output 00:00:10, 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 0 bits/sec, 0 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts (0 multicasts)

0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

0 watchdog, 0 multicast, 0 pause input

0 input packets with dribble condition detected

634 packets output, 68098 bytes, 0 underruns

0 output errors, 0 collisions, 1 interface resets

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

They don't talk. There are no input packets only output. So the Cisco is sending but not getting any replies. If I use an eithernt cable I can talk to the network just fine(through a different switch because the AT in question is fiber only).

Any ideas on what to try? any help would be appreciated!

Thanks

jimmysands73_2 · ‎04-23-2012

Have you considered testing the fiber port on the Cisco device? On the allied side do you have a cisco sw to plug in and connect via fiber so we can guarantee the fiber line is working with devices everyone here is comfortable with (minus Ryan who knows both)? Just a thought. The Cisco side has never recvd any packets this entire time, lets verity that works.

View solution in original post

Leo Laohoo · ‎04-18-2012

Fibre optic cable is fine because you get "up/up". No input "Last input never, output 00:00:10, output hang never" so which means that the Allied Tele is not talking. What config do you have on the SFP port of the 2960S?

DavidReisner · ‎04-18-2012

Thanks for the response. Here is what i have on the SFP for the 2960S:

interface GigabitEthernet1/0/52

switchport trunk allowed vlan 1,7-10

switchport mode trunk

duplex full

ip dhcp snooping trust

end

Leo Laohoo · ‎04-18-2012

interface GigabitEthernet1/0/52

switchport trunk allowed vlan 1,7-10

switchport mode trunk

Sorry but I'm no expert with the Allied but do the Allied support ISL Trunking? If not, then you need to add "switchport trunk encap dot".

duplex full

I don't think you need this.

DavidReisner · ‎04-19-2012

No, ISL trunking is Cisco specific protocol, but no I'm pretty sure the ATs don't support it.

The "switchport trunk encap dot" command doesn't work on the SFP port. I think the encap is just 802.1q and can't be changed on this switch. Unless i'm missing something????

If I remove the duplex full command the port on the 2960s the LED starts flashing amber, sets itself to half duplex and starts kicking out errors. - We do need it.

Thanks

Leo Laohoo · ‎04-19-2012

The "switchport trunk encap dot" command doesn't work on the SFP port. I think the encap is just 802.1q and can't be changed on this switch. Unless i'm missing something????

Sorry. My fault. Didn't realize you have the 2960S. You don't need that command then.

If I remove the duplex full command the port on the 2960s the LED starts flashing amber, sets itself to half duplex and starts kicking out errors. - We do need it.

How about this, change the port to a switchport and see if you can get traffic through. Maybe the Allied T doesn't do or isn't configured for dot1Q trunking.

uw4ever69_2 · ‎04-20-2012

David,

I work at Allied Telesis, and I have my CCNP, so I might be able to help. Looking over the informaiton you have provided so far, there could be a few issues going on:

1. Some older versions of the 9924 do not support 100 Mbps fiber SFP modules.

2. On the 9924's that do support 100 Mbps fiber SFPs, you need to be running software version 2.8.1-03 or later.

3. There could be a configuration issue between the two switches. I see that on the 2960 you have the port set up as a trunk port with vlans 1 and 7-10 tagged. The 9924 would also need to have the same configuration. Regarding leolaohoo's last comment, the 9924 will do 802.1q, but not ISL as this is Cisco proprietary. However, just like Cisco switches, the 9924 by default, will have all switch ports as untagged members of vlan 1 until configured otherwise.

4. There could be an autonegotion issue between the two SFP modules.

5. There could be a compatibility issue between the Cisco SFP module and the Allied Telesis SFP module.

I can help you rule out most of these issues, but I will need a little more information from you. If you can provide the informaiton below, we might be able to get this working:

- Status of the link light on the 9924 port connected to the 2960?

- The outputs from the follow commands on the 9924:

show system

show config dynamic

show switch port=X (where X is the port on the 9924 connect to the 2960)

- The hardware serial number from the 9924 (this can be located on a sticker on the bottom or back of the switch)

Ryan

DavidReisner · ‎04-20-2012

Ryan, thanks for the offer. I could use the help.

Here is the information you requested:

Status of the link light on the 9924 port connected to the 2960? Blinking green

show system:

Switch System Status Time 15:13:41 Date 20-Apr-2012.

Board ID Bay Board Name Host Id Rev Serial number

--------------------------------------------------------------------------------

Base 218 AT-9924SP 0 M4-0 89530177

PSU 212 2 AT-PWR01-AC 0 M6-1 86618312

--------------------------------------------------------------------------------

Memory - DRAM :262144 kB FLASH : 16384 kB

--------------------------------------------------------------------------------

SysDescription

Allied Telesis AT-9924SP version 2.9.1-05 20-Apr-2007

SysContact

SysLocation

1A

SysName

RTS-SW1A-Fiber

SysDistName

SysUpTime

70731002 ( 8 days, 04:28:30 )

Boot Image : 99b104.fbr size 1026588 22-Aug-2008

Software Version: 2.9.1-05 20-Apr-2007

Release Version : 2.9.1-00 25-Dec-2006

Patch Installed : NONE

Territory : europe

Country : usa

Help File : 9-291321.hlp

PSU2: (AC) Fan: Normal Temp: Normal Power: Normal

FAN

-----------------

Main fan Normal

-----------------

Configuration

Boot configuration file: flash:boot.cfg (exists)

Current configuration: flash:boot.cfg

Security Mode : Disabled

show config dynamic:

# Command Handler configuration

# System configuration

set help=9-291321.hlp

set system name="RTS-SW1A-Fiber"

set system location="1A"

set system country=usa

# TIMEZONE configuration

# Flash memory configuration

# LOADER configuration

# User configuration

add user=admin pass=b8655ca6a97fcb7124ebc768eed81b4fff priv=manager lo=yes

set user=admin telnet=yes netmask=255.255.255.255

set user=manager pass=3af00c6cad11f7ab5db4467b66ce503eff priv=manager lo=yes

set user=manager telnet=yes desc="Manager Account"

# TTY configuration

# ASYN configuration

# SWITCH (pre-VLAN) configuration

set switch port=7 description="Uplink to 3B"

set switch port=8 description="Uplink to 4A"

# PPP templates configuration

# L2TP configuration

# Sec Associations configuration

# VLAN general configuration

create vlan="Voice" vid=7

create vlan="Data" vid=8

create vlan="Public" vid=9

create vlan="LevyPC" vid=10

create vlan="LevyPOS" vid=11

create vlan="BoxOfficeSoftware" vid=12

# STP general configuration

# VLAN port configuration

add vlan="7" port=1-9 frame=tagged

add vlan="8" port=1-9 frame=tagged

add vlan="9" port=1-9 frame=tagged

add vlan="10" port=1-9 frame=tagged

add vlan="11" port=1-9 frame=tagged

add vlan="12" port=1-9 frame=tagged

# IGMP Snooping configuration

# MLD Snooping configuration

# STP port configuration

# MSTP configuration

# DHCP Snooping - Pre QoS configuration

# CLASSIFIER configuration

# Stack configuration

# SWITCH (post-VLAN) configuration

# PPP configuration

# DHCP (Pre IP) configuration

# DHCPv6 (pre-IPv6) configuration

# GRE configuration

# IP configuration

enable ip

add ip int=vlan1 ip=10.1.1.254 mask=255.255.0.0

set ip int=vlan1 dir=yes

set ip int=vlan1 mul=on

add ip int=vlan12 ip=10.100.2.253 mask=255.255.255.0

set ip int=vlan12 mul=on

add ip int=vlan7 ip=10.7.1.254 mask=255.255.0.0

enable ip rou cou

add ip rou=0.0.0.0 mask=0.0.0.0 int=vlan1 next=10.1.1.253

set ip rou=0.0.0.0 mask=0.0.0.0 int=vlan1 next=10.1.1.253 pref=60

add ip rou=10.15.0.0 mask=255.255.0.0 int=vlan12 next=10.100.2.254

add ip rou=10.176.0.0 mask=255.255.0.0 int=vlan12 next=10.100.2.254

add ip rou=172.16.16.0 mask=255.255.255.0 int=vlan1 next=10.1.1.253

ena ip igmp int=vlan12

add ip dns prim=10.1.1.216 seco=10.1.1.215

# IPv6 configuration

# SWITCH (post-IP) configuration

# PIM configuration

# PIM6 configuration

# DVMRP configuration

# OSPF configuration

# CLNS configuration

# SNMP configuration

enable snmp

# INT configuration

# Firewall configuration

# RADIUS configuration

# Telnet configuration

# Stream ports configuration

# BOOTP configuration

# NTP configuration

# Ping configuration

# DHCP (Post IP) configuration

# DHCPv6 (post-IPv6) configuration

# IPX configuration

# Appletalk configuration

# ENCO configuration

# SSH configuration

# SSL configuration

# Log configuration

disable log reception

cre log out=1 dest=syslog server=10.1.1.212 secure=no mess=200 syslogformat=extended

add log out=1 filt=1 all

# RSVP configuration

# Mail configuration

# IPSEC configuration

# ISAKMP configuration

#PKI configuration

# HTTP configuration

# VRRP configuration

# GUI configuration

# GARP configuration

enable garp=gvrp stp=default

# QOS configuration

# MACFF configuration

# DHCP Snooping - Post QoS configuration

# BGP configuration

# LB configuration

# TACP configuration

# SKEY configuration

# PORTAUTH configuration

# 802.1X configuration

# MAC Based Auth configuration

# LACP configuration

delete lacp port=7-8

# LLDP configuration

# EPSR configuration

# TRIGGER Configuration

show switch port=X

Switch Port Information

---------------------------------------------------------------------------

Port .......................... 8

Description ................... Uplink to 4A

Status ........................ ENABLED

Link State .................... Up

UpTime ........................ 00:08:55

Port Media Type ............... ETHERNET CSMACD

Configured speed/duplex ....... 100 Mbps, full duplex

Actual speed/duplex ........... 100 Mbps, full duplex

MDI Configuration (Polarity) .. Not applicable

Loopback ...................... Off

Configured master/slave mode .. Not applicable

Actual master/slave mode ...... Not applicable

Acceptable Frames Type ........ Admit All Frames

Disabled Egress Queues ........ -

BCast & MCast rate limit ...... -

BCSC rate Limiting ............ disabled

Egress rate limit ............. -

Learn limit ................... -

Intrusion action .............. Discard

Current learned, lock state ... -, not locked

Address learn thrash status ... Not Detected

Address learn thrash action ... Learn Disable

Address learn thrash timeout .. 1 second

VLAN Status Trap .............. OFF

Relearn ....................... OFF

Mirroring ..................... Disabled

Is this port mirror port ...... No

Enabled flow control(s) ....... -

VLAN(s) ....................... default (1)

Voice (7)

Data (8)

Public (9)

LevyPC (10)

LevyPOS (11)

BoxOfficeSoftware (12)

Ingress Filtering ............. Off

Trunk Group ................... -

STP ........................... default

IGMP Filter ................... None

Max-groups/Joined ............. Undefined/0

IGMP Max-groups Action ........ Deny

SFP vendor name ............... ATI

SFP part number ............... AT-SPFX/2

SFP vendor SN ................. A03237R081100588

SFP date code ................. 08031201

SFP type ...................... OC-3

SFP length .................... -

SFP wavelength ................ 1310nm

---------------------------------------------------------------------------

- The hardware serial number from the 9924 (this can be located on a sticker on the bottom or back of the switch)

A04031A0835001185

uw4ever69_2 · ‎04-20-2012

David,

Your hardware and software are both compatible with 100 Mbps SFP modules, so far so good. Does the 2960 have an IP address, if so, which vlan is the IP address assigned to? It may be beneficial if I can see the config from the 2906. I noticed that you have a few configuration mismatches between the two switches:

9924 port 8: vlans 7-12 tagged

vlan 1 untagged

however, on the 2960, you have:

ge1/0/52: vlans 1,7-10 tagged

Can you ping from switch to switch, if so, what IP addresses are you using to ping?

To ensure traffic is ingressing and egressing from the 9924, you can look at the port counters. First, reset the port counters with the command "reset switch port=8 count". Try and send some traffic from the 2960 through the 9924, then look at the port counters to see if they are incrementing "show switch port=8 count". If you want to send me the config from the 2960 and the outputs from the commands above, I'll take a look.

Ryan

DavidReisner · ‎04-23-2012

Ryan,

I change the 2960s to untag vlan 1. When the fiber is connected the couters on the 9924sp increase, both tranmit and receive. The 2960s however only increases it's output packets. Here are the output captures:

2960s

show int gi 1/0/52

GigabitEthernet1/0/52 is up, line protocol is up (connected)

Hardware is Gigabit Ethernet, address is a456.3085.14b4 (bia a456.3085.14b4)

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive not set

Full-duplex, 100Mb/s, link type is auto, media type is 100BaseFX-FE SFP

input flow-control is off, output flow-control is unsupported

ARP type: ARPA, ARP Timeout 04:00:00

Last input never, output 00:00:00, output hang never

Last clearing of "show interface" counters 00:03:29

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 7000 bits/sec, 9 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts (0 multicasts)

0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

0 watchdog, 0 multicast, 0 pause input

0 input packets with dribble condition detected

2445 packets output, 307839 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

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

RTS-SW4A-01#show run int gi 1/0/52

interface GigabitEthernet1/0/52

switchport mode trunk

duplex full

ip dhcp snooping trust

end

9924sp

Manager RTS-SW1A-Fiber> show switch port=8 counter

Switch Port Counters

---------------------------------------------------------------------------

Port 8. Ethernet MAC counters:

Combined receive/transmit packets by size (octets) counters:

64 436

65 - 127 396

128 - 255 103

256 - 511 85

512 - 1023 48

1024 - MaxPktSz 0

General Counters:

Receive Transmit

Octets 21900 Octets 115378

Pkts 203 Pkts 865

CRCErrors 0

MulticastPkts 22 MulticastPkts 263

BroadcastPkts 181 BroadcastPkts 473

FlowCtrlFrms 0 FlowCtrlFrms 0

OversizePkts 0

Fragments 0

Jabbers 0

UpsupportOpcode 0

UndersizePkts 0

Collisions 0

LateCollisions 0

ExcessivCollsns 0

Miscellaneous Counters:

MAC TxErr 0

MAC RxErr 0

Drop Events 0

---------------------------------------------------------------------------

cadoimnoc · ‎04-20-2012

Check you GBICS (SFPs). You might also verify your fiber has light through both strands. If you have a GBIC mismatch or bad fiber it can cause it to transmit and not receive or vise versa.

RV

Sent from Cisco Technical Support iPad App

DavidReisner · ‎04-23-2012

Robert,

Check you GBICS (SFPs). You might also verify your fiber has light through both strands. If you have a GBIC mismatch or bad fiber it can cause it to transmit and not receive or vise versa.

Thanks for the response. The fiber cable works just fine when connect to another Allied Telesis switch. So the cable is good. A transciever mismatch I suppose is still possible. But before I tried the 100BaseFX-FE SFP I tried a GLC-SX-MM=1000BASE-SX transciever. The interface did not ever light up.

You should also try using the same Cisco brand GBIC in both switches.

I don't think the Allied Telesis would take a cisco transciever, would it?

cadoimnoc · ‎04-23-2012

Cisco's GBICS are not completely proprietary. I have used them in a Cisco to HP and Cisco to Dell environment with no issues at all so you might give it a shot if all else fails.

Just make sure they are the same kind i.e GLC-LH-SM 1310nm etc..

RV

Sent from Cisco Technical Support iPad App

Leo Laohoo · ‎04-23-2012

What IOS is your 2960 running on?

DavidReisner · ‎04-23-2012

C2960S Software (C2960S-UNIVERSALK9-M), Version 12.2(55)SE3, RELEASE SOFTWARE (fc1)

Cisco Catalyst 2960S-48FPS-L connected via fiber to Allied Telesis AT-9924SP