June 2009
Intermediate to advanced
384 pages
8h 20m
English
book
Interconnecting Data Centers Using VPLS (Ensure Business Continuance on Virtualized Networks by Implementing Layer 2 Connectivity Across Layer 3)
by Nash Darukhanawalla - CCIE No. 10332, Patrice Bellagamba
Content preview from Interconnecting Data Centers Using VPLS (Ensure Business Continuance on Virtualized Networks by Implementing Layer 2 Connectivity Across Layer 3)
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Chapter 3. High Availability for Extended Layer 2 Networks
The following design components must be considered to achieve high availability when extending Layer 2 networks:
• Maximum transmission unit (MTU) evaluation for intersite core transport
• Core routing
• Convergence optimization
This chapter focuses on the components listed to achieve high availability.
MTU Evaluation for Intersite Transport
As in any Ethernet encapsulation technology, MTU is an important aspect to consider. The packet-switched network (PSN) must be configured with an MTU that is large enough to transport a maximum-size Ethernet frame that is encapsulated with a control word, a pseudowire (PW) demultiplexer, and a tunnel encapsulation. If the tunneling protocol is Multiprotocol ...
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