Cisco IOS question 12.4(15)T7 on 1812 Router

Tom

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Nov 2, 2009, 1:09:07 PM11/2/09

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Can someone tell me where can I find out exactly which features this
IOS has?

I was told that 12.4(15)T7 can only support 3 VLAN's on an 1812
router, however this does not seem right for this level of router.

Thanks.

Doug McIntyre

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Nov 2, 2009, 1:43:25 PM11/2/09

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Typically, that would be controlled by the router hardware level, and
what the specific hardware supports, not each individual revision of IOS.

Cisco Feature Navigator (cisco.com/go/fn) isn't going to tell you # of
VLANs, because that is a hardware level datum, not software.

The data sheet for the 18xx routers
http://www.cisco.com/en/US/prod/collateral/routers/ps5853/ps6184/product_data_sheet0900aecd8028a95f_ps5853_Products_Data_Sheet.html
says that they all support 8 802.1Q VLANs. (And 4 WiFi encrypted VLANs)

I'd go with the data sheet, excepting possibly a bug in implementation
inside the specific IOS revision you are asking about could accidently
restrict it more than it should be.

Tom

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Nov 2, 2009, 1:47:41 PM11/2/09

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On Nov 2, 1:43 pm, Doug McIntyre <mer...@geeks.org> wrote:

> Tom <tdenham...@gmail.com> writes:
> >Can someone tell me where can I find out exactly which features this
> >IOS has?
> >I was told that 12.4(15)T7 can only support 3 VLAN's on an 1812
> >router, however this does not seem right for this level of router.
>
> Typically, that would be controlled by the router hardware level, and
> what the specific hardware supports, not each individual revision of IOS.
>
> Cisco Feature Navigator (cisco.com/go/fn) isn't going to tell you # of
> VLANs, because that is a hardware level datum, not software.
>

> The data sheet for the 18xx routershttp://www.cisco.com/en/US/prod/collateral/routers/ps5853/ps6184/prod...

> says that they all support 8 802.1Q VLANs. (And 4 WiFi encrypted VLANs)
>
> I'd go with the data sheet, excepting possibly a bug in implementation
> inside the specific IOS revision you are asking about could accidently
> restrict it more than it should be.

Great...thanks for the quick response!!!

So basically this router should work with 4 VLAN's like my others
routers that are identical except this one has T7 vs T5.

Thanks!

Doug McIntyre

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Nov 2, 2009, 5:16:55 PM11/2/09

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Tom <tdenh...@gmail.com> writes:

>On Nov 2, 1:43=A0pm, Doug McIntyre <mer...@geeks.org> wrote:
>> Tom <tdenham...@gmail.com> writes:
>> >Can someone tell me where can I find out exactly which features this
>> >IOS has?
>> >I was told that 12.4(15)T7 can only support 3 VLAN's on an 1812
>> >router, however this does not seem right for this level of router.
>>
>> Typically, that would be controlled by the router hardware level, and
>> what the specific hardware supports, not each individual revision of IOS.
>>
>> Cisco Feature Navigator (cisco.com/go/fn) isn't going to tell you # of
>> VLANs, because that is a hardware level datum, not software.
>>

>> The data sheet for the 18xx routershttp://www.cisco.com/en/US/prod/collat=

>eral/routers/ps5853/ps6184/prod...
>> says that they all support 8 802.1Q VLANs. (And 4 WiFi encrypted VLANs)
>>
>> I'd go with the data sheet, excepting possibly a bug in implementation
>> inside the specific IOS revision you are asking about could accidently
>> restrict it more than it should be.

>Great...thanks for the quick response!!!

>So basically this router should work with 4 VLAN's like my others
>routers that are identical except this one has T7 vs T5.

I would assume so, and would also assume that whatever said 3 may have
been a typo, or somebody reading a poor printout and couldn't
distinguish a 3 from an 8.

Tom

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Nov 3, 2009, 8:14:43 AM11/3/09

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Thanks Much Doug!