Dell 6.2 Adding a Ba ndwidth Con tract to the VLAN, Optimizing VLAN Broa dcast and Mu lticast Traffic

113| Netw ork Configuration Par ameters DellPowerConnect W- Series ArubaOS 6.2 | User Guide
The followingexample shows how to add existing VLAN IDs to a VLA N 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, uset heshow vlan mapping command:
(TechPubs650) (config) #show vlan mapping
Vlan Mapping Table
------------------
VLAN Name Pool Status Assignment Type VLAN IDs
--------- ----------- --------------- --------
mygroup Enabled Hash 62,94
newpoolgroup Enabled Even
vlannametest Enabled Even 62,1511
Adding a Ba ndwidth Con tract to the VLAN
Bandwidth contracts on a VLAN can limit broadcast and multicast traffic. ArubaOS includes an internalexception
list to allow broadcast and multicast traffic using the VRRP, LACP , OSPF,P VST 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 Li st.
The commandi nt heexample below adds the MAC address for CDP (Cisco Disco veryP rotocol) andV TP (Virtual
TrunkingProtoco l 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 Broa dcast and Mu lticast Traffic
Broadcast and Multicast (BCMC) traffic from APs, remote APs, or distributions terminating on the same V LAN
floods allV LAN member ports. This causes critical bandwidth wastage especially when the APs are connected to L3
cloudw herethe available bandwidth is limited or expensive. Suppressingt heV LAN BCMC traffic to prevent
floodingcan result in loss o f client connectivity.
To effectively preventflooding of BCMC traffic on all VLAN member ports, use the bcmc-optimizationparameter
underthe interface vlan command. This parameter ensurescontrolled flooding of BCMC traffic without
compromising the clientco nnectivity. By defaultthis opt ion is disabled.You must enable this parameter fort he
controlledflooding of BCMC traffic.
NOTE:If BCMC Optimization i s enabled on uplink ports, the controller-generated Layer-2packets will be dropped.