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Link Aggregation on Cisco IOS XR

Posted by gokhankosem on 09 Sep 16 - 0 Comments

Link Aggregation on Cisco IOS XR Link aggregation, LAG, Bundle, EtherChannel, what ever you say, they have the same logic in real. So, the configuration logic of Link Aggregation (LAG) is not different than Ether Channel logic on Cisco devices that run Cisco XR software. Here, again the bundle is created and the ports are […]

Cisco VPLS Configuration Example

Cisco VPLS Configuration Example In this article we will focus on the VPLS (Virtual Private LAN Service) configuration on Cisco device . We will use the below VPLS (Virtual Private LAN Service) topology for our configuration example. Cisco VPLS Configuration Example Topology In this VPLS topology, the devices that we will use are, Cisco Catalyst […]

Basic VPLS Architecture, Full Mesh

Comparison of VPLS and h-VPLS VPLS (Virtual Private LAN Service) and h-VPLS (Hierarhical VPLS) has some common and different properties. So they have different aadvantages and disadvantages.In this article, we will focus on the comparison of these two concepts. The most important different between VPLS and h-VPLS is in the interface between the CE (Customer […]

VPLS (Virtual Private LAN Service) – Part 3 (h-VPLS)

Posted by gokhankosem on 08 Sep 16 - Comments Off on VPLS (Virtual Private LAN Service) – Part 3 (h-VPLS)

H-VPLS (Hierarchical VPLS) H-VPLS (Hierarchical VPLS) is the more scalable version of VPLS. Basically, H-VPLS has some architectural difference than flat VPLS. VPLS Architecture, Flat VPLS In H-VPLS, there are some additional edge devices. These devices are u-PE (User facing Provider Edge) and n-PE (Network facing Provider Edge). By using two different Edge Devices, H-VPLS […]

BGP Path Attributes – MED

Posted by gokhankosem on 24 Aug 16 - 0 Comments

BGP Path Attributes – MED MED (Multi Exit Discriminator) attribute is the BGP Path attribute which provides information to the external neighbours, about how to come their Autonomous System. This is opposite of Local Preference. Local Preference says to the internal neighbours, “How to Exit AS”. MED says to the external neighbours, “How to Enter […]

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