which series switch supports vlan up to 4000

Surat Teknoloji · ‎11-05-2012

hi ;

we are using 3750 and 2950 switches both of them do not support vlan up to 4000 .

we need vlan about 3000 .Whic cisco series switch do support vlan up to 4000.

2950

S-SW1.3(config-vlan)#exi

Proposed configuration has too many VLANs for this platform. Reduce the number of VLANs proposed.

S-SW1.3(config)#end

3750

SW1(config-vlan)#exi

%Proposed configuration exceeds the limit of 1005 VLANs that can be supported on this platform. Reduce the number of VLANs proposed to be within this limit.

thanks

Sandeep Choudhary · ‎11-05-2012

Hi Surat,

there are protocol limitations and platform limitations

historically VTP supported only vlans in normal range 1-1005 anf for creating and using vlans in extended range 1006-4094 the switch should have been in VTP transparent mode.

VTPv3 should allow for support of vlans in extended range as declared in VTPv3 doc

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/solution_guide_c78_508010.html

http://www.cisco.com/en/US/docs/switches/lan/catalyst4000/8.1/configuration/guide/vlans.html

However, there are also platform limitations and for C3750 the limit should be 1000.and not 4000.

4000 vlans should be supported on C6500 only ( and Nexus and may be C4948- C4500)

I'm afraid you will not be able to have 4,000 Vlans advertised in VTP to a C3750, the switch should revert to transparent mode when reaching its own limit to protect itself.

__________________________________________________________________________________________________________

Catalyst 4500 series switches support 4096 VLANs in accordance with the IEEE 802.1Q standard. These VLANs are organized into several ranges; you use each range slightly differently. Some of these VLANs are propagated to other switches in the network when you use a management protocol, such as the VLAN Trunking Protocol (VTP). Other VLANs are not propagated, and you must configure them on each applicable switch.

There are three ranges of VLANs:

•Normal-range VLANs: 1-1000, 1002-1005

•Extended-range VLANs: 1025-4094

Note The term nonreserved VLANs is used to denote any VLANs that are not reserved by Cisco; this includes normal-range and extended-range VLANs.

Note With VTP version 3, you can manage extended-range VLANs 1025-4094. These VLANs are propagated with VTP version 3.

•Reserved-range VLANs: 0, 1006-1024, 4095

Regards

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