Specifications

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Chapter 2 Cisco IOS Commands
vlan (global configuration)
• stp type: defines the spanning-tree type for FDDI-NET, Token Ring-NET, or TrBRF VLANs. For
FDDI-NET VLANs, the default STP type is ieee. For Token Ring-NET VLANs, the default STP
type is ibm. For FDDI and Token Ring VLANs, the default is no type specified.
– ieee for IEEE Ethernet STP running source-route transparent (SRT) bridging.
– ibm for IBM STP running source-route bridging (SRB).
– auto for STP running a combination of source-route transparent bridging (IEEE) and
source-route bridging (IBM).
• tb-vlan1 tb-vlan1-id and tb-vlan2 tb-vlan2-id: specifies the first and second VLAN to which this
VLAN is translationally bridged. Translational VLANs translate FDDI or Token Ring to Ethernet,
for example. Valid values are from 0 to 1005. If no value is specified, 0 (no transitional bridging) is
assumed.
Table 2-22 Valid Commands and Syntax for Different Media Types
Media Type Valid Syntax
Ethernet name vlan-name, media ethernet, state {suspend | active}, said said-value, mtu
mtu-size, remote-span, tb-vlan1 tb-vlan1-id, tb-vlan2 tb-vlan2-id
FDDI name vlan-name, media fddi, state {suspend | active}, said said-value,
mtu mtu-size, ring ring-number, parent parent-vlan-id, tb-vlan1 tb-vlan1-id,
tb-vlan2 tb-vlan2-id
FDDI-NET name vlan-name, media fd-net, state {suspend | active}, said said-value, mtu
mtu-size, bridge bridge-number, stp type {ieee | ibm | auto}, tb-vlan1 tb-vlan1-id,
tb-vlan2 tb-vlan2-id
If VTP v2 mode is disabled, do not set the stp type to auto.
Token Ring VTP v1 mode is enabled.
name vlan-name, media tokenring, state {suspend | active}, said said-value,
mtu mtu-size, ring ring-number, parent parent-vlan-id, tb-vlan1 tb-vlan1-id,
tb-vlan2 tb-vlan2-id
Token Ring
concentrator
relay function
(TrCRF)
VTP v2 mode is enabled.
name vlan-name, media tokenring, state {suspend | active}, said said-value,
mtu mtu-size, ring ring-number, parent parent-vlan-id, bridge type {srb | srt},
are are-number, ste ste-number, backupcrf {enable | disable},
tb-vlan1 tb-vlan1-id, tb-vlan2 tb-vlan2-id
Token Ring-NET VTP v1 mode is enabled.
name vlan-name, media tr-net, state {suspend | active}, said said-value,
mtu mtu-size, bridge bridge-number, stp type {ieee | ibm}, tb-vlan1 tb-vlan1-id,
tb-vlan2 tb-vlan2-id
Token Ring
bridge relay
function (TrBRF)
VTP v2 mode is enabled.
name vlan-name, media tr-net, state {suspend | active}, said said-value,
mtu mtu-size, bridge bridge-number, stp type {ieee | ibm | auto},
tb-vlan1 tb-vlan1-id, tb-vlan2 tb-vlan2-id