Extreme Networks ExtremeWare 7.7, Command Reference Manual

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2302 ExtremeWare 7.7 Command Reference Guide
PoS Commands—BlackDiamond Switch Only
configure ports tunnel hdlc
configure ports <portlist> tunnel hdlc [off | mpls]
Description
Enables tunneling for HDLC encapsulated frames from a SONET port through an MPLS network.
Syntax Description
Default
The default is
off
.
Usage Guidelines
The ingress SONET port encapsulates the entire HDLC frame (including the HDLC header and FCS)
inside an Ethernet/MPLS header. The egress SONET port strips the Ethernet/MPLS header and
forwards the HDLC frame. HDLC idle bytes (x7E) are not tunneled, but runts and aborted frames are.
HDLC control bytes are destuffed on ingress and stuffed on egress.
When a SONET port is configured for HDLC tunneling, PPP should not be configured on the port (BCP
and IPCP should be off). Furthermore, the port should be the only port in a VLAN and a MPLS
TLS-tunnel should be configured for this VLAN. The payload inside HDLC could be PPP or some other
HDLC-encapsulated protocol. SONET APS (automatic protection switching) is supported between
tunneled PoS ports on the same module or different modules in the same switch. APS for tunneled
ports is not supported for ports on different switches.
Example
The following command example configures an HDLC tunnel, and applies to a PoS module installed in
slot 1 of a BlackDiamond switch:
configure ports 1:4 tunnel hdlc mpls
History
This command was first available in an ExtremeWare IP Technology Services Release based on
v6.1.8b12.
Platform Availability
This command is available on the BlackDiamond switch only.
portlist Specifies the SONET port number(s).
off Disables HDLC tunneling.
mpls Enables an MPLS TLS-tunnel.