Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 601)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 577
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Customer requirements
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Figure 60 describes the behavior with “raw-pass-through-mode” with NetIron R05.5.00.
FIGURE 67 Tagged packet handling into and from MPLS uplink with ‘raw-pass-through’
Backward compatibility
This feature is backward compatible where the existing VC modes continue to be supported and
operable with older releases.
Upgrade and downgrade considerations
When deploying this feature, follow the standard upgrade procedure for the XMR/MLX platform.
Scaling support
There are no changes to scaling numbers.
Customer requirements
• Configured local endpoint as untagged
• Pass the received tags ASIS from local endpoint towards remote peer
• Treat payload tag received from MPLS Uplink (remote peer) as part of the payload and do
not take its PCP into account for QOS decision making
• Configured local endpoint as tagged
• Pass the received tags ASIS from local endpoint towards remote peer
• Strip the payload tag received from MPLS uplink (remote peer) but preserve its PCP value
and take into account for QOS decision making based on customer configuration