VLANs between aironet 1310 & catalyst 1912-A

Unanswered Question
Aug 15th, 2008

Hi Guys,

Please help, can I have vlan on my wlan with catalyst 1912-A Enterprise Edition ?

I read somewhere " The Cisco 1900 series does not support 802.1q, leaving ISL as the only option for creating trunk connections with other Cisco."



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Overall Rating: 5 (1 ratings)
s.abubasheer Sat, 08/16/2008 - 23:43


Please if you read my conversation tell where can I find an answer for my question ?!



Scott Fella Sun, 08/17/2008 - 13:09

Well it looks like you are correct... ISL is only supported for trunking. See the following notes froma doc:

Supports a maximum of two trunks. The Catalyst 1900 switch supports a maximum of two Inter-Switch Link (ISL) trunks. The Catalyst 2820 switch supports both ISL and Asynchronous Transfer Mode (ATM) LAN emulation (LANE) trunk connections.


Hope this helps.

s.abubasheer Mon, 08/18/2008 - 06:56

Hi Fella5,

Thank you for the reply, so does that mean I can't use this switch 1912-A with my aironet 1310 to make vlans, because it doesn't support IEEE 802.11Q ?



Scott Fella Mon, 08/18/2008 - 07:06

You are correct... just get a switch that support 802.1Q trunking and you should be good to go.

Scott Fella Mon, 08/18/2008 - 07:08

You are correct... just get a switch that support 802.1Q trunking and you should be good to go.

s.abubasheer Mon, 08/18/2008 - 08:03


Thank you, I'll do it all I'm going to upgrade most of my wlan, please tell me what cisco router & switch can work best with the new Aironet 1252n.



Scott Fella Mon, 08/18/2008 - 08:12

If you are looking to use the switch to power up the 1252, then you need to go with the E-Seires switches.

From Cisco's site :

Catalyst 3750-E and 3560-E Series, with the Catalyst 6500 and Catalyst 4500-E Series scheduled to follow in the second quarter of this calendar year. With ePoE, customers can power Cisco 802.11n wireless access points from a single switch port, delivering greater operational simplicity and business flexibility for secure wired and wireless integrated network.


s.abubasheer Mon, 08/18/2008 - 08:26


Ok, I new about catalyst E-series, I need to go with less expensive catayst because I'll power up the AP with the power injector, so what other series can I go with please.



Scott Fella Mon, 08/18/2008 - 08:45

The 2960's are cheaper and can be used with the 1250's. Or even the Catalyst Express 500, which are Cisco's SOHO type devices.

s.abubasheer Mon, 08/18/2008 - 09:02


Thanks fella5,

I'll see the specifications of both, but what about the routers please I read about 881 & 888 can you recomende with ap 1250's.

I ask a lot excuse me but it's important for the right choice.



Scott Fella Mon, 08/18/2008 - 10:35

For a router, it doesn't matter what ap you have, more like what interface you need to connect to your WAN and also you will need a Fast Ethernet on the router to connect to your switch.

The SOHO are the 800 series and then you can get into the 1800 series which can cost alot more.


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