Example of OSPF Network Types and NBMA

On NBMA networks with an OSPF network type that requires that a DR be elected, you must take care to make sure the correct DR is elected. The reason is that the DR and BDR must each have a PVC connecting it to all the DROther routers

Summary of PIM-DM Messages

This section concludes the coverage of PIM-DM. Table 20-2 lists the key PIM-DM messages covered in this chapter, along with a brief definition of their use. Table 20-2 Summary of PIM-DM Messages   The next two short sections introduce two other dense-mode protocols, DVMRP and MOSPF

Mitigating Detrimental Effects of the LDP Restart

As discussed previously, when the LDP control-plane component of an LSR restarts, it causes the failure of LDP sessions between that LSR and its peers. As soon as a peer detects the failure of an LDP session with the restarting neighbor, that peer immediately terminates the concerned LDP session and...

Variable-Length Subnet Masks

A variable-length subnet mask (VLSM) is designed to allow greater use of IP address space by borrowing bits from the subnet mask and allocating them to host devices. To allow a greater number of devices to connect to the Internet and intranets, the standards bodies of various routing protocols desig...

LLQ, or PQ/CBWFQ

With the emergence of voice traffic into data networks, the need to differentiate between the various classes of service has become greater. PQ/CBWFQ, most commonly known as LLQ, is a new feature that provides a strict priority queue for voice traffic and a weighted fair queue for each of the other ...

Contact Us

86-136-2222-6316
CALL ME NOW

© 2011 CathaySchool, an ANDA Technology Group company, All Rights Reserved Privacy Policy | Refund Policy | Disclaimer | Sitemap | Resources Tags