Archive for the ‘Service Provider’ Category

UC300 VOIP PBX

Posted by Peter Kurdziel on March 16, 2011

http://www.youtube.com/watch?v=1rE7oiIQ7fY&feature=player_embedded

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L2VPN Pseudowire Switching

Posted by Peter Kurdziel on May 21, 2010

L2VPN Pseudowire Switching

allows the user to extend L2VPN pseudowires across an inter-AS boundary or across two separate MPLS networks.
connects two or more contiguous pseudowire segments to form an end-to-end multihop pseudowire. This end-to-end pseudowire functions as a single point-to-point pseudowire.
enables you to keep the IP addresses of the edge PE routers private across inter-AS boundaries. You can use the IP address of the autonomous system boundary routers (ASBRs) and treat them as pseudowire aggregation (PE-agg) routers. The ASBRs join the pseudowires of the two domains.
enables you to keep different administrative or provisioning domains to manage the end-to-end service. At the boundaries of these networks, PE-agg routers delineate the management responsibilities.

Diagram and configs can be found here:

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fsstitch.html

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CCIE SP v3 to add IPv6 and IOS-XR

Posted by Peter Kurdziel on May 19, 2010

CCIE SP v3 to add IPv6 and IOS-XR

https://learningnetwork.cisco.com/message/58601

Here is an expanded checklist for CCIE SP v2

https://learningnetwork.cisco.com/servlet/JiveServlet/download/61649-9827/CCIE%20Service%20Provider%20preparation%20guide.pdf

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Multiprotocol BGP for IPv6 example

Posted by Peter Kurdziel on April 19, 2010

Configuring an IPv6 Multiprotocol BGP Peer Group and advertising a route example.

Scenario
Configure R1 & R2 for IPv6 Multiprotocol BGP using a Peer Group and
advertising R1 & R2′s loopbacks.
Simple two router network for demonstration purposes.

R1<—->FR<—–>R2

Configuration
r1

ipv6 unicast-routing

interface Loopback99
no ip address
ipv6 address 2001:DB8:1111::1/48

interface Serial2/0
ipv6 address 2001:DB8:0:CC00::1/48

router bgp 65100
no bgp default ipv4-unicast
neighbor group1 peer-group
neighbor 2001:DB8:0:CC00::2 remote-as 65100
neighbor 2001:DB8:0:CC00::2 peer-group group1

address-family ipv6
neighbor group1 activate
neighbor 2001:DB8:0:CC00::2 peer-group group1
network 2001:DB8:1111::1/48
exit-address-family

r2
ipv6 unicast-routing

interface Loopback99
no ip address
ipv6 address 2001:DB8:1111::2/48

interface Serial2/0
ipv6 address 2001:DB8:0:CC00::2/48

router bgp 65100
no bgp default ipv4-unicast
neighbor group1 peer-group
neighbor 2001:DB8:0:CC00::1 remote-as 65100
neighbor 2001:DB8:0:CC00::1 peer-group group1

address-family ipv6
neighbor group1 activate
neighbor 2001:DB8:0:CC00::1 peer-group group1
network 2001:DB8:1111::2/48
exit-address-family

Verification

R1#sh ipv6 int br

Serial2/0             [up/up]
    FE80::C804:12FF:FEDC:8
    2001:DB8:0:CC00::1

Loopback99                 [up/up]
    FE80::C804:12FF:FEDC:8
    2001:DB8:1111::1

R2#sh ipv int b
Serial2/0               [up/up]
    FE80::C805:12FF:FEDC:8
    2001:DB8:0:CC00::2
Loopback99                 [up/up]
    FE80::C805:12FF:FEDC:8
    2001:DB8:1111::2

R1#
sh bgp ipv6 unicast sum
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
2001:DB8:0:CC00::2
4 65100 6 6 2 0 0 00:02:17 1

R2#
sh bgp ipv6 unicast sum
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
2001:DB8:0:CC00::1
4 65100 6 6 2 0 0 00:02:41 1

R1#
sh bgp ipv6 unicast neighbors 2001:DB8:0:CC00::2 advertised-routes
BGP table version is 2, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i – internal,
r RIB-failure, S Stale
Origin codes: i – IGP, e – EGP, ? – incomplete

Network Next Hop Metric LocPrf Weight Path
*> 2001:DB8:1111::1/48
:: 0 32768 i

R2#
sh bgp ipv6 uni nei 2001:DB8:0:CC00::1 adver
BGP table version is 2, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i – internal,
r RIB-failure, S Stale
Origin codes: i – IGP, e – EGP, ? – incomplete

Network Next Hop Metric LocPrf Weight Path
*> 2001:DB8:1111::2/48
:: 0 32768 i

R1#
sh bgp ipv6 unicast neighbors 2001:DB8:0:CC00::2 routes
BGP table version is 2, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i – internal,
r RIB-failure, S Stale
Origin codes: i – IGP, e – EGP, ? – incomplete

   Network          Next Hop            Metric LocPrf Weight Path
* i2001:DB8:1111::1/48
                    2001:DB8:0:CC00::2
                                             0    100      0 i

R2#
sh bgp ipv6 uni nei 2001:DB8:0:CC00::1 routes
BGP table version is 2, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i – internal,
r RIB-failure, S Stale
Origin codes: i – IGP, e – EGP, ? – incomplete

   Network          Next Hop            Metric LocPrf Weight Path
* i2001:DB8:1111::2/48
                    2001:DB8:0:CC00::1
                                             0    100      0 i

Troubleshooting

R2#deb bgp ipv6 unicast updates

R2#clear bgp ipv6 unicast * soft
R2#
00:22:50: BGP(1): 2001:DB8:0:CC00::1 send UPDATE (format) 2001:DB8:1111::2/48, next 2001:DB8:0:CC00::2, metric 0, path
00:22:50: BGP(1): updgrp 1 – 2001:DB8:0:CC00::1 enqueued 1 updates, average/maximum size (bytes) 75/75
00:22:50: BGP(1): 2001:DB8:0:CC00::1 rcvd UPDATE w/ attr: nexthop 2001:DB8:0:CC00::1, origin i, localpref 100, metric 0
00:22:50: BGP(1): 2001:DB8:0:CC00::1 rcvd 2001:DB8:1111::/48

Everything is as expected.

More info: Cisco IOS IPv6 Configuration Guide, Release 12.4 Implementing Multiprotocol BGP for IPv6
http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-mptcl_bgp.html#wp1027258