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Posts tagged CCIP
Basic AToM Lab
Oct 14th
In this article we’ll go over a simple AToM (Any Transport over MPLS) configuration. I’ve been studying MPLS a lot lately and this is my first time playing with AToM and it’s very cool stuff. This article could be useful for anyone studying MPLS and/or CCIP/CCIE topics, or just someone who is interested in learning new things. I will be including my Dynagen/GNS3 .net file with this. Here is our topology:
Let’s go through the config:
P Router:
hostname P ! mpls label protocol ldp mpls ldp router-id lo0 force ! interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface FastEthernet1/0 ip address 10.1.1.1 255.255.255.252 duplex auto speed auto mpls ip ! interface FastEthernet1/1 ip address 10.1.2.1 255.255.255.252 duplex auto speed auto mpls ip ! router ospf 100 router-id 1.1.1.1 log-adjacency-changes network 1.1.1.1 0.0.0.0 area 0 network 10.1.1.0 0.0.0.3 area 0 network 10.1.2.0 0.0.0.3 area 0 |
Here we’ve set the hostname, configured the MPLS label protocol (note: LDP is the default on new IOSes), we set a loopback interface that will be our RID for MPLS and OSPF. We also configured our connections to the PE routers and brought up OSPF as our IGP.
PE1 Router:
hostname PE1 ! mpls label protocol ldp mpls ldp router-id lo0 force ! pseudowire-class one encapsulation mpls ! interface Loopback0 ip address 2.2.2.2 255.255.255.255 ! interface FastEthernet1/0 ip address 10.1.1.2 255.255.255.252 duplex auto speed auto mpls ip ! interface Serial2/0 no ip address xconnect 3.3.3.3 100 pw-class one ! router ospf 100 router-id 2.2.2.2 log-adjacency-changes network 2.2.2.2 0.0.0.0 area 0 network 10.1.1.0 0.0.0.3 area 0 |
PE2 Router:
hostname PE2 ! mpls label protocol ldp mpls ldp router-id lo0 force ! pseudowire-class one encapsulation mpls ! interface Loopback0 ip address 3.3.3.3 255.255.255.255 ! interface FastEthernet1/0 ip address 10.1.2.2 255.255.255.252 duplex auto speed auto mpls ip ! interface Serial2/0 no ip address xconnect 2.2.2.2 100 pw-class one ! router ospf 100 router-id 3.3.3.3 log-adjacency-changes network 2.2.2.2 0.0.0.0 area 0 network 10.1.2.0 0.0.0.3 area 0 |
Great MPLS and BGP Lab
Oct 12th
I got this over at Networking-Forum.com, a member named Fred created it, he was even kind enough to provide the Visio diagram, IP scheme spreadsheet and, most importantly, the .net file for Dynagen/GNS3. I spent a lot of my Saturday working on this beast. I thought I should share it here as it is great practice for MPLS VPNs and BGP along with some OSPF, NAT, IPSEC and GRE exposure.
(click image for fullsize)
Internet
* The two Internet routers should serve as transit AS’s. No other routers should permit transit traffic.
* Internet sites (modeled by loopbacks) should be accessible by all lan IP’s.
QoS Tutorial
Jul 24th
In this article we will be using the Modular Quality of Service CLI (MQC). This article will be useful for CCNP (ONT) or CCIP (QoS) studies.With MQC you first define traffic classes, then you build a policy map in which the actions are applied to your classes, finally you apply the policy to an interface. This is a 20/2 cable connection, before implementing QoS my P2P traffic was really beating up on all my other traffic.
First we’ll go over class maps. Class maps are used to match traffic. Here are my class maps:
class-map match-any NNTP description This is the Newsgroups traffic. match access-group name MATCH_NNTP match protocol nntp class-map match-any BT description This is the Bittorrent traffic. match protocol bittorrent match access-group name BT_PORT class-map match-any PRIORITY description This is all the traffic that gets priority. match protocol http match protocol dns match protocol secure-http match protocol ssh match access-group name MATCH_RDP |
Class map NNTP is matching the port for newsgroups traffic using ACL MATCH_NNTP:
ip access-list extended MATCH_NNTP permit tcp any eq nntp any deny ip any any |
Class map BT is matching my bitttorrent traffic using NBAR and the port specified in ACL BT_PORT:
ip access-list extended BT_PORT permit tcp any eq 32547 any deny ip any any |
Class map PRIORITY is matching a lot of traffic, most of it is using Network Based Application Recognition (NBAR) (match protocol ______), we’re also using MATCH_RDP for Microsoft remote desktop traffic:
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