Vlan configuration rules, Multilink trunks – Nortel Networks 1000ASE-XD User Manual
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Chapter 2 Network configuration
209418-A
VLAN configuration rules
VLANs operate according to specific configuration rules. When creating VLANs,
consider the following rules that determine how the configured VLAN reacts in
any network topology:
•
All ports that are involved in port mirroring must have memberships in the
same VLANs. If a port is configured for port mirroring, the port’s VLAN
membership cannot be changed.
•
If a port is a trunk group member, all trunk members are added or deleted
from the VLAN.
•
All ports involved in trunking and port mirroring must have the same VLAN
configuration. If a port is on a trunk with a mirroring port, the VLAN
configuration cannot be changed.
•
Auto PVID can be activated by creating a VLAN and enabling Auto PVID for
it.
For more information about configuring VLANs, see
.
See also
Appendix C, “Quick configuration for MultiLink Trunking,” on page 193
for configuration flowcharts that can help you use this feature.
MultiLink Trunks
MultiLink Trunks allow you to group from two to four switch ports together to
form a link to another switch or server, thus increasing aggregate throughput of
the interconnection between the devices (up to 800 Mb/s in full-duplex mode).
You can configure up to six MultiLink Trunks. The trunk members can only reside
on a single unit. MultiLink Trunking software detects misconfigured (or broken)
trunk links and redirects traffic on the misconfigured or broken trunk link to other
trunk members within that trunk.
You can use the Trunk Configuration screen to create switch-to-switch and
switch-to-server MultiLink Trunk links (
).
shows two trunks (T1 and T2) connecting Switch S1 to switches S2
and S3.