Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 558)

534 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
53-1003031-02
Configuring MPLS VLLs
4
Brocade(config-mpls)# vll foundry-sj-to-sf 40000
Brocade(config-mpls-vll)#
On the VLL peer (when it is a device), the user would enter commands such as the following.
Brocade(config-mpls)# vll foundry-sf-to-sj 40000
Brocade(config-mpls-vll)#
Syntax: vll vll-name | vll-vc-id [cos cos value] [raw-mode]
The vll-vc-id corresponds to the user-configurable ID defined in
draft-ietf-pwe3-control-protocol-14.txt.
The user can optionally specify a Class of Service (COS) setting for the VLL. When a COS value is
set, the device selects a tunnel LSP that also has this COS value, when one is available. when no
tunnel LSP with this COS value is available, the device selects a tunnel LSP with the highest
configured COS value (although never higher than the COS setting for the VLL). The COS value can
be between 0 – 7.
NOTE
On Brocade NetIron CES and Brocade NetIron CER devices, the route-only command must not be
configured on untagged MPLS uplinks when using it for VLL. Otherwise, incoming VLL traffic is
dropped.
Specifying tagged or raw mode for a VLL
The default treatment for packets that are sent through a VLL is for the ingress router to add a
VLAN ID tag to the payload Ethernet header. When the packet arrives at the egress router, the tag is
stripped off and the packet is forwarded.
The user can configure a VLL to send all packets in “raw” mode. This means that the ingress router
of the VLL does not add a VLAN ID tag to the payload Ethernet header and consequently the egress
router does not have to strip it off. Both the ingress and egress routers must be configured in either
default (tagged mode) or raw mode. To configure a router to send or receive packets for a VLL in
raw mode, enter the following command.
Brocade(config-mpls)# vll raw-mode
Syntax: vll vll-name| vll-vc-id [raw-mode]
The vll-name is the name of the VLL the user wants to configure raw mode for.
The vll-vc-id corresponds to the user-configurable ID defined in
draft-ietf-pwe3-control-protocol-14.txt.
When raw-mode is specified, the VC type for signaling is 5, otherwise it is 4 (for tagged mode).
When raw-mode is not specified, the default configuration is for the ingress router to send packets
with a tag, and for the egress router to strip it off before forwarding the packets.
NOTE
when there is a VC type mismatch between VLL peers, a session is not be brought up between them.