H31-211 Exam Dumps - HCNA - Carrier IP

Convergence is a process of combining the routing tables of two routers.

Convergence is a process of synchronizing all routing tables for all the routers in the network. It is the process for a router to reach the stable and consistence state after the network changes.

Convergence is a process of establishing neighbor relationships between any two routers by sending hello packets.

Convergence is a process that occurs due to network topology changes.

TCP/IP

IPX

SNA

SPX

Message (message)

sender (sender)

Receiver (receiver)

Medium

Power (power)

Listening

Blocking

Learning

Forwarding

Hybrid port can implement packet stripping label sending in multiple VLANs.

When the Hybrid port and the trunk port send data, the processing method is the same.

Hybrid port does not contain VLAN tag for sending data.

The data sent by the Hybrid port may have a VLAN 1 tag.

Quit

Router

User-view

System-view

The maximum possible value of TTL is 65535

Under normal circumstances, the router should not receive packets with TTL=0 from the interface.

TTL is mainly to prevent the cyclic forwarding of IP packets in the network, wasting network bandwidth.

Each time a IP packet passes through a network device, including Hub, LAN SWITCH, and router, the TTL value is subtracted from a certain value.

Area ID must be assigned by IANA and we can not simply assign it.

OSPF supports area division.

Every OSPF area is identified by a 32-bit Area ID number.

Without manual configuration, an OSPF area is a backbone area with area ID 0 by default.