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vlan tagging accross sfp ports not working

 
vlavlavlad
Occasional Advisor

vlan tagging accross sfp ports not working

I have a few v1910's 48 port in the network, 2 on each building and the connection between the building is optic fiber. I have vlans working perfectly on each end, but any packet going accross the optic fiber link is not tagging. I have trunked those ports like the ethernet ones and added the corresponding tagging numbers also, but no results. I'm using OEM sfp transceivers which are working great except for the tagging not happening. Anybody out there with info on this ?

7 REPLIES 7
Fredrik Lönnman
Honored Contributor

Re: vlan tagging accross sfp ports not working

Can you pastebin your config?

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CCIE Service Provider
MASE Network Infrastructure [2011]
H3CSE
CCNP R&S

vlavlavlad
Occasional Advisor

Re: vlan tagging accross sfp ports not working

The config of the ports is like the ethernet ones that work fine. Link type is set to trunk for the corresponding ports on each end and tagged is set for the range of vlans (3-25) as an example. Or do you need a specific config from the console ?

John Gelten
Regular Advisor

Re: vlan tagging accross sfp ports not working

For both switches, do a show running. From that output, copy-paste the information from the VLAN-sections (the VLANs you want across the link), and the INTERFACE sections of the SFP-interfaces. You could also include one of the copper-interfaces that you mentioned as a reference.

vlavlavlad
Occasional Advisor

Re: vlan tagging accross sfp ports not working

show running command is not supported. I'm logged into the cli with _cmdline-mode on' and the password '512900 which gives me access to the system commands and that is not one of them.

vlavlavlad
Occasional Advisor

Re: vlan tagging accross sfp ports not working

Here is the info on port 49 sfc, the other end has the same output. This is the same exact output as ethernet ports which have the same trunk and tagged configuration and it works through them. But again the sfp ports are not passing any taggs.

 

[v191048]display interface GigabitEthernet1/0/49
GigabitEthernet1/0/49 current state: UP
IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: d07e-2819-eb9a
Description: GigabitEthernet1/0/49 Interface
Loopback is not set
Media type is optical fiber, Port hardware type is 1000_BASE_SX_SFP
1000Mbps-speed mode, full-duplex mode
Link speed type is autonegotiation, link duplex type is autonegotiation
Flow-control is not enabled
The Maximum Frame Length is 10240
Broadcast MAX-ratio: 100%
Unicast MAX-ratio: 100%
Multicast MAX-ratio: 100%
PVID: 1
Port link-type: trunk
VLAN passing : 1(default vlan)
VLAN permitted: 1(default vlan), 2-15
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
Last clearing of counters: Never
Peak value of input: 2011 bytes/sec, at 2000-04-26 07:01:38
Peak value of output: 21061 bytes/sec, at 2000-04-26 07:02:43
Last 300 seconds input: 10 packets/sec 856 bytes/sec 0%
Last 300 seconds output: 13 packets/sec 4901 bytes/sec 0%
Input (total): 15424 packets, 1535732 bytes
10132 unicasts, 916 broadcasts, 4376 multicasts, 0 pauses
Input (normal): 15424 packets, 1535732 bytes
10132 unicasts, 916 broadcasts, 4376 multicasts, 0 pauses
Input: 0 input errors, 0 runts, 0 giants, - throttles
0 CRC, 0 frame, 0 overruns, 0 aborts
- ignored, - parity errors
Output (total): 13759 packets, 10459101 bytes
13741 unicasts, 9 broadcasts, 9 multicasts, 0 pauses
Output (normal): 13759 packets, 10459101 bytes
13741 unicasts, 9 broadcasts, 9 multicasts, 0 pauses
Output: 0 output errors, - underruns, - buffer failures
0 aborts, 0 deferred, 0 collisions, 0 late collisions
- lost carrier, - no carrier

 

 

vlavlavlad
Occasional Advisor

Re: vlan tagging accross sfp ports not working

issue has been resolved. thanks

ag-wetter
Visitor

Re: vlan tagging accross sfp ports not working

What was the solution to this as I have the exact same issue?