In BGP graceful restart, how does a peer router indicate the end of a route exchange?()
第1题:
What are the two benefits of graceful restart?()
第2题:
Which graceful restart parameter is negotiated during BGP session establishment?()
第3题:
The OSPF RFC 3623 Graceful Restart feature allows you to configure IETF NSF in ultivendor networks. When using OSPF Graceful Restart,which mechanism is used tocontinue forwarding packets during a switchover?()
第4题:
BGP协议为了支持GR,做了如下扩展()。
第5题:
In BGP graceful restart, how does a peer router indicate the end of a route exchange?()
第6题:
The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.
The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates,the restarting router starts sending its own updates.
The peer router sends an end-of-RIB message to the restarting router.
The restarting router removes any stale prefixes after the timer for stale entries expires.
The restarting router does not remove any stale prefixes after the timer for stale entries expires.
第7题:
Grace-time
Restart-time
Stale-routes-time
Restart-update-time
第8题:
Graceful restart allows session information recovery without disruption to the network.
A node can perform a graceful restart to help a neighbor recover its state. The label bindings are kepton state information, which helps the failed node recover faster and does notaffect the current for wardtraffic.
Graceful restart allows a node to recover state from its neighbor when there is no RP or before thedevice undergoes SSO.
Graceful restart does not allow session information recovery.
During a graceful restart, the router removes any stale prefixes after a timer for stale entries expires
第9题:
在BGP的OPEN消息中,增加了一种表示GR的能力,称为Graceful Restart Capability。这种能力被BGP用来向邻居表示其支持Graceful restart的能力
在Keepalive报文中增加TLV211表明路由器发生了重启
定义了两个重要的定时器:Restart timer和Wait-For-EOR timer
在Update报文中,新增加一个EOR(End-of-RIB)标志,用于表明路由信息向邻居更新完毕
第10题:
Router must be ABR
Router must contain one sham link.
The network topology must be stable.
Router must be able to forward packets.
Neighbors must support graceful restart.
第11题:
对
错
第12题:
支持OSPF graceful restart
支持ISIS graceful restart
支持BGP graceful restart
不支持BGP graceful restart
第13题:
Which two features must be configured to perform AToM NSF?()
第14题:
S9300支持的三层特性以下说法正确的是()。
第15题:
In which two ways does the BGP graceful capability preserve prefix information during a restart?()
第16题:
A cluster node has a failed fibre adapter requiring the node to be halted to replace it. To minimize downtime, what is the appropriate method of performing this repair?()
第17题:
对
错
第18题:
The peer router sends an end-of RIB message to the restarting router
The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing table
The restarting router does not remove any stale prefixes after the timer for stale entries expires
The router establishes BGP sessions with other routers and relearns the BGP routes from other routers that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers. When the neighboring routers send end-of-RIB messages to indicate that they are done sending updates, the restarting router starts sending its own updates
The restarting router removes any stale prefixes after the timer for stale entries expires
第19题:
an open message with the E bit set
an update message with the E bit set
an open message with an end-of-RIB marker
an update message with an end-of-RIB marker
第20题:
An open message with the E bit set.
An update message with the E bit set.
An open message with an end-of-RIB marker.
An update message with an end-of-RIB marker.
第21题:
Router must be an ABR.
Router must contain one sham link.
The network topology must be stable.
Router must be able to forward packets.
Neighbors must support graceful restart.
第22题:
Sending out a graceful restart PDU
Sending an LSP that contains no TLVs.
Sending out a restarts TLV with the RR bit set.
Reflooding its LSP with a maximum sequence number.
第23题:
Router must be ABR
Router must contain one sham link.
The network topology must be stable.
Router must be able to forward packets.
Neighbors must support graceful restart.