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4. Ethernet Switch Configuration
4
E thernet Switch Configuration
This chapter describes the steps of the configuration for the network switch
in general terms:
Link Aggregation (LAG)
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VLAN
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IGMPv2
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Optional Configuration
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Installation and Network Setup Guide for UBEX
ATTENTION! The UBEX extenders do not support jumbo/giant frames.
4.1. Link Aggregation (LAG)
DEFINITION: The Link Aggregation Group (LAG) applies to various methods of combining (aggregating)
multiple network connections in parallel in order to increase throughput beyond what a single connection
could sustain.
Create Link Aggregation Groups (LAG's)/EtherChannels etc. for each port pair that is used for 20 GbE
transmission (LAG is not necessary for the ports which are used for 10 GbE transmission). The bonding
mode is dynamic: 802.3-ad LACP has to be enabled for each group.
4.2. VLAN
DEFINITION: A virtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a computer
network at the data link layer (OSI layer 2). LAN is the abbreviation for local area network and in this
context, virtual refers to a physical object recreated and altered by additional logic.
The UBEX network uses 802.1Q tagged frames with the VLAN ID of 286. This VLAN has to be available from
each LAG, with tagged frames. The LAG's have to be in trunk mode (multiple VLAN's are available on UBEX
devices, other VLAN's may be used with tagged or untagged frames).
The port where the MMU is connected is also a trunk port.
4.3. IGMPv2
DEFINITION: IGMP snooping is the process of listening to Internet Group Management Protocol network
traffic. The feature allows a network switch to listen in on the IGMP conversation between hosts and
routers.
IGMPv2 snooping has to be enabled for each LAG in this VLAN.
4.4. Optional Configuration
Enable Link Layer Discovery Protocol (LLDP) on all ports to access topology information in order to speed
up your installation process.
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