Ip Fragmentation Within A Vlan; Load Sharing On The Switch; Static Load Sharing - Extreme Networks ExtremeWare 7.2e Installation And User Manual

3 Assign an IP address to the VLAN.
4 Enable ipforwarding on the VLAN.
5 Set the MTU size for the VLAN, using the following command:
configure ip-mtu <number> vlan <vlan name>
The ip-mtu value can be 1500 - 9194, with 1500 the default.
NOTE
To set the MTU size greater than 1500, all ports in the VLAN must have jumbo frames enabled.

IP Fragmentation within a VLAN

ExtremeWare supports IP fragmentation within a VLAN. This feature does not require you to configure
the MTU size. To use IP fragmentation within a VLAN, follow these steps:
1 Enable jumbo frames on the incoming port.
2 Add the port to a VLAN.
3 Assign an IP address to the VLAN.
4 Enable ipforwarding on the VLAN.
If you leave the MTU size configured to the default value, when you enable jumbo frame support on a
port on the VLAN you receive a warning that the ip-mtu size for the VLAN is not set at maximum
jumbo frame size. You can ignore this warning if you want IP fragmentation within the VLAN, only.
However, if you do not use jumbo frames, IP fragmentation can only be used for traffic that stays
within the same VLAN. To use IP fragmentation for traffic that is set to other VLANs, you must
configure all ports in the VLAN for jumbo frame support.

Load Sharing on the Switch

Load sharing allows you to increase bandwidth and availability by using a group of ports to carry
traffic in parallel between switches. Load sharing allows the switch to use multiple ports as a single
logical port. For example, VLANs see the load-sharing group as a single logical port. Most load-sharing
algorithms guarantee packet sequencing between clients.
If a port in a load-sharing group fails, traffic is redistributed to the remaining ports in the load-sharing
group. If the failed port becomes active again, traffic is redistributed to include that port.
NOTE
Load sharing must be enabled on both ends of the link or a network loop may result. The load-sharing
algorithms do not need to be the same on both ends.

Static Load Sharing

Static load sharing is a grouping of ports specifically configured to load share. The switch ports at each
end must be configured as part of a load-sharing group. Additionally, you can choose the load-sharing
algorithm used by the group. This feature is supported between Extreme Networks switches only, but
ExtremeWare 7.2e Installation and User Guide

Load Sharing on the Switch

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