Category: Cisco
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I’m a big fan of SLB, regardless of the technology, Cisco, Alteon, F5…..whatever! You can run SLB on your router for basic services in a round-robin type configuration, you can even add weightings if required – it’s a handy feature.
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Running a dual link configuration to ensure no SPOF using BGP and EIGRP.
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Because my brain and eyesight are failing fast, i have to write it down nowadays, here’s a very basic BGP configuration with 3 different Autonomous System (AS) Numbers.
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Basic config for a BGP Peer Group within an AS 123 and some iBGP routers. The config uses peer-group and route reflectors which saves you a lot of configuration on all the iBGP devices.
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IP Routing: BGP Configuration Guide, Cisco IOS Release 15M&T
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I decided to use cisco’s EEM Scripting Engine to activate and deactivate the cellular interface to support a Primary link failure of our MPLS Link combined with an IP SLA: ip sla auto discovery ip sla 100 icmp-echo 1.1.1.1 source-interface GigabitEthernet0/1 threshold 1000 frequency 15 ip sla schedule 100 life forever start-time…
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Stateful Failover for IP Security (IPsec) allows a router to continue processing and forwarding IPsec packets after a planned or unplanned outage occurs. A backup (secondary) router automatically takes over the tasks of the active (primary) router if the active router loses connectivity for any reason. This process is transparent…
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One page PDFs published by Cisco. Each one focuses on a specific topic and is a fine reference. QoS Baseline This is the most important At-a-Glance document by far. In a way, it is the foundation of your QoS policy, and all other At-a-Glance documents build off it. QoS Best…
MystaJoneS 