Cisco
350-029 · Question #159
What is periodically multicasted (every 10 seconds) by the DIS on a LAN to ensure IS-IS Link State Database accuracy?
The correct answer is C. CSNP. On broadcast networks, designated routers send complete sequence number PDU (CSNP) packets to maintain database synchronization. The CSNP interval timer is the number of seconds between transmissions of CNSP packets from this interface.
Core Technologies
Question
What is periodically multicasted (every 10 seconds) by the DIS on a LAN to ensure IS-IS Link State Database accuracy?
Options
- AIIH
- BLSP
- CCSNP
- DISH
- EPSNP
How the community answered
(31 responses)- A3% (1)
- C84% (26)
- D3% (1)
- E10% (3)
Explanation
On broadcast networks, designated routers send complete sequence number PDU (CSNP) packets to maintain database synchronization. The CSNP interval timer is the number of seconds between transmissions of CNSP packets from this interface.
Topics
#IS-IS#CSNP#DIS#link state database
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