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JUNOS Enterprise Switching
book

JUNOS Enterprise Switching

by Harry Reynolds, Doug Marschke
July 2009
Intermediate to advanced
752 pages
23h 19m
English
O'Reilly Media, Inc.
Content preview from JUNOS Enterprise Switching

Chapter Review Answers

  1. Answer: D. A VC consists of 2 to 10 EX4200 chassis.

  2. Answer: B. Each VC port operates at 32 Gbps FD, yielding 64 Gbps of throughput per port. Two ports yield 128 Gbps of throughput between adjacent VC members.

  3. Answer: False. Although it is a best practice to make the master RE member 0, this is not mandatory; the member ID must be unique, but has no direct relationship to the VC role.

  4. Answer: B. Only B is correct, and the lowest MAC address is the tiebreaker.

  5. Answer: D. The operational mode request virtual chassis vc-port command alters the private NVRAM configuration to set or clear VCE mode. Support for 1X GE VCE ports first appeared in Release 9.2. You can mix and match VCE and normal modes, and all ports can operate in VCE mode if desired.

  6. Answer: D. VCCP is based on the IS-IS link state routing protocol, but is proprietary to Juniper.

  7. Answer: A. In non-provisioned mode, you can map a member ID to a mastership priority.

  8. Answer: B. In non-provisioned mode, the member ID is not set directly, but is instead controlled through the power-up sequence. You can later alter the assignment with the CLI request chassis renumber command.

  9. Answer: C. VCCP can function even when mismatched software or configuration issues prevent a successful VC join.

  10. Answer: A, B. From the current master you can request a login to the other RE, which will be a backup. You can also explicitly state that a connection should be formed to the backup RE. Option C is used to form internal VTY connections ...

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Publisher Resources

ISBN: 9780596804244Errata Page