Problems Connecting Cisco 2950 & powerConnect 6224F

Today, I´ll make troubleshooting and check the

show fiber-ports optical-transceiver

Regards.

Hi Team

I have made a troubleshooting. Connecting directly with a 3 m fiber directly patch cord a Cisco 2960 (2 links) and a Cisco 2950 to a PC6224F

The firmware on 6224F is 3.3.3.3

The 6224F config ports are

interface ethernet 1/g1
description 'planta_uno'
switchport mode trunk
switchport trunk allowed vlan add 1,206
exit
!
interface ethernet 1/g2
description 'planta_dos'
switchport mode trunk
switchport trunk allowed vlan add 1,206
exit
!
interface ethernet 1/g3
description 'planta_tres'
switchport mode trunk
switchport trunk allowed vlan add 1,206
exit

and the cisco config (both devices) ports are:

interface GigabitEthernet0/47
 switchport trunk allowed vlan 1,206
 switchport mode trunk
 media-type sfp

interface GigabitEthernet0/48
 description Enlaces troncales (bkp)
 switchport trunk allowed vlan 1,206
 switchport mode trunk
 media-type sfp
...

interface GigabitEthernet0/1
 switchport trunk allowed vlan 1,206
 switchport mode trunk

6224STACK#show isdp neighbors

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge,
                  S - Switch, H - Host, I - IGMP, r - Repeater
Device ID              Intf    Holdtime  Capability   Platform             Port ID
---------------------- ------- --------- ------------ -------------------- ----------------------
Hosting.grupogyj.es    1/g1    171       S I          cisco WS-C2960G-48TC GigabitEthernet0/48
Hosting.grupogyj.es    1/g2    120       S I          cisco WS-C2960G-48TC GigabitEthernet0/47
Cat2950_PB_2           1/g19   130       S I          cisco WS-C2950G-48-E GigabitEthernet0/1
SW-Stack-3750X.gpsmoto 2/xg3   120       R S I        cisco WS-C3750X-24   TenGigabitEthernet3/1/

(the connection with Cico 3750X functions properly, problem is isolated to 1 Gb links.)

6224STACK#show fiber-ports optical-transceiver

                                   Output    Input
Port     Temp  Voltage  Current     Power    Power   TX     LOS
          :emotion-44:   [Volt]     [mA]     [dBm]    [dBm]   Fault
-------  ----  -------  -------   -------  -------   -----  ---
1/g1     23.1    3.323      4.8    -5.408   -6.602   No     No
1/g2     23.5    3.315      5.7    -5.420   -7.338   No     No
1/g3     22.1    3.336      4.6    -5.442  -40.000   No     Yes
1/g19    21.9    3.325      4.7    -5.577   -7.567   No     No
1/xg3    34.9    3.249      7.8    -1.729  -40.000   No     Yes
2/g1     22.8    3.294      5.1    -5.430   -5.820   No     No
2/g2     22.3    3.295      5.6    -5.488   -5.857   No     No
2/g3     20.0    3.305      5.2    -5.566  -36.990   No     Yes
2/g19    21.8    3.297      4.7    -5.424  -40.000   No     Yes
2/xg3    38.6    3.258      6.6    -2.783   -1.670   No     No

 Temp - Internally measured transceiver temperatures.
 Voltage - Internally measured supply voltage.
 Current - Measured TX bias current.
 Output Power - Measured optical output power relative to 1mW.
 Input Power - Measured optical power received relative to 1mW.
 TX Fault - Transmitter fault.
 LOS - Loss of signal.
The switches are connect on 1/g1,1/g2,1/g19, 2/xg3 (10 Gbps)

¿Any ideas?

REgards.

Ok

Ports 1/g1,1/g2 goes to C2960

Port 1/g19 goes to C2950

Port 1/xg3 go to C3750X

- On configuration switchport mode general, currently function on mode trunk on port 1/xg3 What´s difference?

I have read similar case in this following link, could be ok but I´m confused because the config on 1/xg3 function properly and configurate on trunk link. What´s diffence?

http://blog.scottlowe.org/2010/12/02/vlan-trunking-between-nexus-5010-and-dell-powerconnect-switches/

Regards.

PS: All The connected port transceiver lights come on.

I had push the config below in 1/g1,1/g2 and 1/g19 but no functions,

sw"...itchport mode general

switchport general allowed vlan add 1,206 tagged

switchport general pvid 1..."

I try make a ping to a C2950 and a C2960G but not function.

I have made a simple configuration with ports on sw mode access in cisco and dell switches and not function.

I´m thinking about i could be a question of transceivers.

What can I do?

Regards.

I haven´t more transceiver than check the availability, I use to troublehooting the cli command.

6224STACK#show fiber-ports optical-transceiver

(with this command the switch was hanged and need to switch off several times)

In red colour, the ports 1/g1-1/g2 cat2960, 1/g19 cat 2950, there is 2/xg3 with a cisco 3750x on 10 Gbps but function properly, the problem is isolated to 1 Gb links.

 

                                   Output    Input

Port     Temp  Voltage  Current     Power    Power   TX     LOS

          :emotion-44:   [Volt]     [mA]     [dBm]    [dBm]   Fault

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

1/g1     23.1    3.323      4.8    -5.408   -6.602   No     No

1/g2     23.5    3.315      5.7    -5.420   -7.338   No     No

1/g3     22.1    3.336      4.6    -5.442  -40.000   No     Yes

1/g19    21.9    3.325      4.7    -5.577   -7.567   No     No

1/xg3    34.9    3.249      7.8    -1.729  -40.000   No     Yes

2/g1     22.8    3.294      5.1    -5.430   -5.820   No     No

2/g2     22.3    3.295      5.6    -5.488   -5.857   No     No

2/g3     20.0    3.305      5.2    -5.566  -36.990   No     Yes

2/g19    21.8    3.297      4.7    -5.424  -40.000   No     Yes

2/xg3    38.6    3.258      6.6    -2.783   -1.670   No     No

 

 Temp - Internally measured transceiver temperatures.

 Voltage - Internally measured supply voltage.

 Current - Measured TX bias current.

 Output Power - Measured optical output power relative to 1mW.

 Input Power - Measured optical power received relative to 1mW.

 TX Fault - Transmitter fault.

 LOS - Loss of signal.

 

I have bought 10 transceivers from the same model but not functions.

Because they don´t  function and I want that Dell change this form others.

I´m surprised with this issue. Probably think on mind on future in the case to offer more Dell switches to my customers.

Regards.

Hi.

The cisco optics transceiver are Classic Cisco GBIC in C2950 and compatible transceiver on C2960S.

But they function properly between Cisco switches,Not problem.

That transceiver are Customer property and I had changed this for others but nothing changes. Happen the same case.

The question is isolated to 6224F

In the other hand, I had downloaded the firmware right now, study and try upgrade switches ASAP.

Regards.

Right now, the problem is solved

- Transceiver is ok

-Updated the 6224F to 3.3.8.3 release.

- After, I Changed the configuration port  on interface 10G from trunk mode to general mode.This interface is connected to backbone ws-C3750X

I think the general mode is the standard correctly to connect all Cisco Switches.

The trunk mode function depending on the Cisco switch type but not passing ip traffic correctly.

Regards