Segment routing in ISO-XR 5.2.2
8
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1 © 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1 Segment Routing Bertrand Duvivier Sr Product Marketing [email protected]
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Transcript of Segment routing in ISO-XR 5.2.2
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1
Segment Routing
Bertrand Duvivier
Sr Product Marketing
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 2
Carrier Class99.999+
Scalability
Application Enabled Routing
I need a circuit to got
to host
Use the RED pathHost
SDN
controller
• Simplicity and Usability
• Carrier Class: 50ms protection
• Scalability
• IPv6 & MPLS IPv6
• Application driving the network
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3
Description: Segment Routing allows
to transport MPLS labels witnin the
deployed IGP (OSPF or ISIS) and
tehrefore reduce MPLS complexity, no
need to synchronize protocols, no
need to do double monitoring or
troubleshooting,…
LDP
ISIS
OSPF
ISIS SR
OSPF SR
RSVP-TE
ISIS
OSPF
ISIS SR
OSPF SR
Dynamic path
Explicit path
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 4
Description: The goal is to provide
automated 50ms link and node
protection whatever topologies or IGP
metric.
And optimizing backup path as closed
as post convergence optimized pathC2
100
11
1
1
1
primary
backup
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 5
Description: The goal is to allow
Applications (represented by flows) to
ask for permanent or time specific SLA
and for the SDN controller express this
requirement into dynamic or explicit
path. As the explicit path is injected in
the packet and not in the network
devices, Segment Routing allows to
support to scale.
I need a circuit to got
to host
Use the RED path
Host
SDN
Controller
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 6
- IS-IS IPV4 MPLS nodal segment
-Allow to express dynamic path
- IS-IS IPv4 Segment Routing chip in the nigth with LDP deployement
- IS-IS IPv4 LFA and rLFA FRR
XR 5.2.0
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 7
- IS-IS MPLS Nodal and Adjacency segment
- Allows to express dynamic and explicit path
- IS-IS Segment Routing interworking with LDP
- IS-IS IPv4/IPv6 Topology Independent Loop Free Alaternat Fast ReRoute
- OSPFv2 Nodal segment
XR 5.2.2
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 8
http://www.segment-routing.net
