11-31
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 11 Configuring VLANs
Configuring Token Ring VLANs on the Switch
To modify the VLAN parameters on an existing FDDI VLAN, perform this task in privileged mode:
Configuring Token Ring VLANs on the Switch
These sections describe the two Token Ring VLAN types that are supported on the switches running VTP
version 2:
•
Understanding How Token Ring TrBRF VLANs Work, page 11-31
•
Understanding How Token Ring TrCRF VLANs Work, page 11-32
•
Token Ring VLAN Configuration Guidelines, page 11-34
•
Creating or Modifying a Token Ring TrBRF VLAN, page 11-34
•
Creating or Modifying a Token Ring TrCRF VLAN, page 11-35
You must use VTP version 2 to configure and manage the Token Ring VLANs.
Note
Catalyst 6500 series switches do not support the ISL-encapsulated Token Ring frames.
Understanding How Token Ring TrBRF VLANs Work
The Token Ring Bridge Relay Function (TrBRF) VLANs interconnect multiple the Token Ring
Concentrator Relay Function (TrCRF) VLANs in a switched Token Ring network (see
Figure 11-3
). The
TrBRF can be extended across a network of switches that are interconnected through the trunk links. The
connection between the TrCRF and the TrBRF is referred to as a
logical port
.
Figure 11-3
Interconnected Token Ring TrBRF and TrCRF VLANs
Task
Command
Step 1
Modify an existing FDDI or FDDI NET-type
VLAN.
set vlan
vlan
[
name
name
] [
state
{
active
|
suspend
}] [
said
said
] [
mtu
mtu
]
Step 2
Verify the VLAN configuration.
show vlan
[
vlan
]
Token
Ring
001
Token
Ring
001
Token
Ring
002
Token
Ring
002
Token
Ring
011
Token
Ring
002
SRS
SRS
SRS
SRB or SRT
BRF
CRF
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