Configurable Vlan Parameters; Understanding Token Ring Vlans - Cisco 7609 Configuration Manual

Chapter 9 Configuring VLANs

Configurable VLAN Parameters

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You can configure the following parameters for VLANs 2 through 1001:
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Understanding Token Ring VLANs

The following section describes the two Token Ring VLAN types supported on network devices running
VTP version 2:
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Cisco 7600 series routers do not support Inter-Switch Link (ISL)-encapsulated Token Ring frames.
Note
When a Cisco 7600 series router is configured as a VTP server, you can configure Token Ring VLANs
from the router.
Token Ring TrBRF VLANs
Token Ring Bridge Relay Function (TrBRF) VLANs interconnect multiple Token Ring Concentrator
Relay Function (TrCRF) VLANs in a switched Token Ring network (see
extended across network devices interconnected with trunk links. The connection between the TrCRF
and the TrBRF is referred to as a logical port.
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Ethernet VLAN 1 uses only default values.
Except for the VLAN name, Ethernet VLANs 1006 through 4094 use only default values.
With Release 12.1(13)E and later releases, you can configure the VLAN name for Ethernet VLANs
1006 through 4094.
VLAN name
VLAN type (Ethernet, FDDI, FDDI network entity title [NET], TrBRF, or TrCRF)
VLAN state (active or suspended)
Security Association Identifier (SAID)
Bridge identification number for TrBRF VLANs
Ring number for FDDI and TrCRF VLANs
Parent VLAN number for TrCRF VLANs
Spanning Tree Protocol (STP) type for TrCRF VLANs
Token Ring TrBRF VLANs, page 9-3
Token Ring TrCRF VLANs, page 9-4
Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
Understanding How VLANs Work
Figure 9-1). The TrBRF can be
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