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VPLS (Virtual Private LAN Service) – Hierachical-VPLS (H-VPLS)

Posted by gokhankosem on 08 Sep 16 - Comments Off on VPLS (Virtual Private LAN Service) – Hierachical-VPLS (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 […]

Link Layer Discovery Protocol-Media Endpoint Discovery, LLDP-MED

LLDP-MED (Link Layer Discovery Protocol-Media Endpoint Discovery) As a standard and open protocol, LLDP is a good protocol. After the development of LLDP, some of the additional properties needed especially for Voice Over IP (VoIP). So LLDP extended. The extended version of LLDP is LLDP-MED (Link Layer Discovery Protocol – Media Endpoint Discovery). You can […]

How LLDP Works, LLDP Mechanism

LLDP (Link Layer Discovery Protocol) LLDP (Link Layer Discovery Protocol) is a Standard Neighbour Discovery Protocol that is used by all vendors. Like all other Neighbour Discovery Protocols, LLDP works on Layer 2 (Data-link Layer). By using LLDP, directly connected neighbours are discovered. To discover a neighbour device, LLDP must be enabled both on the […]

Neighbour Discovery Protocols Neigbour Discovery Protocols provides directly connected devices to discover and collect information about each other. Network devices can provide directly connected neighbour device’s identification, configuration and any capabilities. Neighbour Discovery Protocols work on Layer 2. There are different neighbour protocols for different vendors. Generally they are refer this protocol like “vendor” discovery […]

Redundancy Protocols – Part 4 (VRRP)

Archived in the category: CCIE, CCNP, Cisco Certification, JNCIP, NRS II, Redundancy, SRA, VRRP
Posted by gokhankosem on 23 Dec 15 - 0 Comments
redundancy protocols VRRP (Virtual Router Redundancy Protocol), protocols for redundancy

VRRP(Virtual Router Redundancy Protocol) VRRP(Virtual Router Redundancy Protocol) is a standard based redundancy protocol. The configuration of this protocol is like HSRP with only small differences. In VRRP the active router is called Master, and the remainning ones are all Backup routers. So there can be multiple backup routers. VRRP (Virtual Router Redundancy Protocol) By […]


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