Transcript dry-martini
Dry-Martini:
Run PWE3 over Any Sub-IP
Ping Pan
Hammerhead Systems
IETF 60
Pseudo-wire in Perspective
An IP-centric technology to deal with
sub-IP traffic
An aggregation mechanism
Draft-martini never excludes the kind of
PSN to be used:
… so long there is a tunnel, here comes the
pseudo-wires
So, what’s the fuss?
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How Dry?
Here comes the pseudo-wire
A Tunnel: SONET, GigE, ATM, FR…
LDP to exchange MPLS labels
2.2.2.2
1.1.1.1
1. More than MPLS Backbone
2. More than PSN
3. … it’s any Net
A Network: SONET Ring,
GigE Link, ATM, FR…
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Is this useful? … You bet!
IP/MPLS Backbone
ATM/Frame Network
TDM Transport
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What to standardize, and why IETF?
Transport networks cannot route LDP messages
Need a special label to tunnel them through
Such as Explicit-Null Label
Need to consider more to make it practical
QoS, OAM, switching… per-pseudo-wire
In the context of PWE3 data transport…
All PE’s share the same IP capability
Only need IETF defined PWE3 encapsulation
No need to re-invent other encapsulation types
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Thanks!
Questions?
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