The following example shows how to add existing VLAN IDs to a VLAN pool:

(host) #configure terminal

Enter Configuration commands, one per line. End with CNTL/Z (host) (config) #vlan-name mygroup pool

(host) (config) #vlan mygroup 2,4,12

(host) (config) #

To confirm the VLAN pool status and mappings assignments, use the show vlan mapping command:

(TechPubs650) (config) #show vlan mapping

Vlan Mapping Table

 

 

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

Assignment Type

VLAN IDs

VLAN Name

Pool Status

mygroup---------

-----------

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

--------

Enabled

Hash

62,94

newpoolgroup

Enabled

Even

62,1511

vlannametest

Enabled

Even

Adding a Bandwidth Contract to the VLAN

Bandwidth contracts on a VLAN can limit broadcast and multicast traffic. ArubaOS includes an internal exception list to allow broadcast and multicast traffic using the VRRP, LACP, OSPF, PVST and STP protocols. To remove per-VLAN bandwidth contract limits on an additional broadcast or multicast protocol, add the MAC address for that broadcast/multicast protocol to the VLAN Bandwidth Contracts MAC Exception List.

The command in the example below adds the MAC address for CDP (Cisco Discovery Protocol) and VTP (Virtual Trunking Protocol to the list of protocols that are not limited by VLAN bandwidth contracts.

(host) (config) #vlan-bwcontract-explist mac 01:00:0C:CC:CC:CC

To show entries in the VLAN bandwidth contracts MAC exception list, use the

show vlan-bwcontract-explist [internal]command:

(host) (config) #show vlan-bwcontract-explist internal

VLAN BW Contracts Internal MAC Exception List

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

MAC address

-----------

01:80:C2:00:00:00

01:00:0C:CC:CC:CD

01:80:C2:00:00:02

01:00:5E:00:82:11

Optimizing VLAN Broadcast and Multicast Traffic

Broadcast and Multicast (BCMC) traffic from APs, remote APs, or distributions terminating on the same VLAN floods all VLAN member ports. This causes critical bandwidth wastage especially when the APs are connected to L3 cloud where the available bandwidth is limited or expensive. Suppressing the VLAN BCMC traffic to prevent flooding can result in loss of client connectivity.

To effectively prevent flooding of BCMC traffic on all VLAN member ports, use the bcmc-optimizationparameter under the interface vlan command. This parameter ensures controlled flooding of BCMC traffic without compromising the client connectivity. By default this option is disabled. You must enable this parameter for the controlled flooding of BCMC traffic.

NOTE: If BCMC Optimization is enabled on uplink ports, the controller-generated Layer-2 packets will be dropped.

113 Network Configuration Parameters

Dell PowerConnect W-Series ArubaOS 6.2 User Guide

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Dell 6.2 manual Adding a Bandwidth Contract to the Vlan, Optimizing Vlan Broadcast and Multicast Traffic

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