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某-H323网关在向网守注册时收到了RCF消息，说明___。

某-H323网关在向网守注册时收到了RRJ消息，说明___。

在一个通过网守进行呼叫的VoIP网络里,当网守在自己管辖的范围内不能确定被叫终端的位置信息时,会如何操作?

下列哪个消息用于被叫方向主叫方表明呼叫请求正在处理中,不再接收该呼叫请求的其它呼叫建立信息?

在H.323协议中,通话双方的能力协商由下列哪个协议完成?

在H.323协议中,通话双方的能力协商由下列哪个协议完成?

SIP UA通过代理服务器呼叫被叫的过程中

在SIP网络中，当重定向服务器收到主叫UA发送的会话请求消息后，___。

下列关于SIP消息结构的描述哪些是正确的?

主叫UA发送一条请求消息并收到了被叫UA的2000K响应,此主叫UA如何撤销刚才的请求?

主叫UA和被叫UA间如何协商双方支持的媒体类型及编码方式?

某会话是UA通过代理服务器发起的。当某一方UA希望结束会话时

在MSR路由器配置命令如下: Acl basic 2000 Rule 0 permit source 192.168 0.0.0.0.255 Acl basic 2002 Rule 0 permit source 192.168 2.0.0.0.255# Traffic classifier 2 operator and If-match acl2002 Traffic classifier 1 operator and lf-match acl2000# Traffic behavior2 Queue af bandwidth pct 25 Traffic behavior 1 Queue ef bandwidth pct 25 cbs-ratio25# Qos policy test Classifier 1 behavior 1 Classifier2 behavior 2# Interface GigabitEthernet0/1 Port link-mode route Duplex full Speed 10 Qos max-bandwidth1000000 Lp address 192.168.1.1 255 255 255.0 Qos apply policy test outbound 当源地址分别为192.168.02、192.168.22、192.168.32的报文流量速率分别为4Mbps、4Mbps、5Mbps无其它背景流量，从端口G0/1向外转发时。则以下说法正确的是

VXLAN使用的是以下哪种封装技术?

EVPN组网环境下，VXLAN隧道是自动建立的其中VTEP地址是通过EVPN哪个路由类型报文发布和学习到的?

EVPN是基于以下哪个技术实现的控制层面技术?

在系统视图下，配置封装模式为GRE的0号隧道的完整命令为

根据如图组网和下列配置可以判断这是一个( )技术的应用 RTA: [RTA]ike proposal 1 [RTA]ike-proposal-1]quit [RTA]ike keychain keychain1 [RTA]ike-keychain-keychain1]pre-shared-key address 100.1.1.2 key simple h3c [RTA]ike-keychain-keychain1]quit [RTA]ike profile profile1 [RTA]ike-profile-profile1]keychain keychain1 [RTA]ike-profile-profile1]local-identity address100.1.1.1 [RTA]ike-profile-profile1]match remote identity address 100.1.1.2 [RTA]ike-profile-profile1]proposal 1 [RTA]ike-profile-profile1]quit [RTA]acl advanced 3000 [RTA]acl-ipv4-adv-3000]rule 5 permit ip source10.1.1.00.0.0.255 destination 10.3.1.0.0.0.0.255 [RTA]acl-ipv4-adv-3000]quit [RTA]ipsec transform-set tran1 [RTA]ipsec-transform-set-tran1]esp encryption algorithm 3des-cbc [RTA]ipsec-transform-set-tran1]quit [RTA]ipsec policy policy1 lisakmp [RTA]ipsec-policy-isakmp-policy1]transform-set tran1 [RTA]ipsec-policvisakmp-policy1]securityacl3000 [RTA]ipsec-policy-isakmp-policy1]remote address 100.1.1.2 [RTA]ipsecpolicy-isakmp-policy1]ike-profileprofile1 [RTA]ipsec-policy-isakmp-policy1]quit [RTA]interface Gigabit Ethernet 0/0 [RTA]GigabitEthernet0/0]ip address 10.1.1.2.255.255.255.0 [RTA]GigabitEthernet0/0]quit[RTA]interface LoopBack 0 [RTA]LoopBack0]ip address 1.1.1.1.255.255.255.255 [RTA]LoopBack0]quit[RTA]interface Serial 1/0 [RTA]Serial1/0]ip address 10.2.1.1.255.255.255.0 [RTA]Serial1/0]quit [RTA]interface Tunnell mode gre [RTA]Tunnell]ip address 100.1.1.1.255.255.255.0 [RTA]Tunnell]source 1.1.1.1 [RTA]Tunnell]destination2.2.2.2 [RTA]Tunnell]ipsec apply policy policy1 [RTA]Tunnell]quit [RTA]ip route-static 2.2.2.2 255.255.255.25510.2.1.2 [RTA]ip route-static 10.3.1.0255.255255.0 Tunnel 1 RTB: [RTB]ike proposal 1 [RTB]ike-proposal-1]quit [RTB]ike keychain keychain1 [RTB]ike-keychain-keychain1]pre-shared-key address 100.1.1.1 key simple h3c [RTB]ike-keychain-keychain1]quit [RTB]ike profile profile1 [RTB]ike-profile-profile1]keychain keychain1 [RTB]ike-profile-profile1]local-identity address100.1.1.2 [RTB]ike-profile-profile1]match remote identity address 100.1.1.1 [RTB]ike-profile-profile1]proposal 1 [RTB]ike-profile-profile1]quit [RTB]acl advanced 3000 [RTB]acl-ipv4-adv-3000] rule 0 permit ip source10.3.1.00.0.0.255 destination 10.1.1.0.0.0.0.255 [RTB]acl-ipv4adv-3000]quit [RTB]ipsec transform-set tran1 [RTB]ipsec-transform-set-tran1]esp encryption algorithm 3des-cbc [RTB]ipsec-transform-set-tran1]esp authentication-algorithmmd5 [RTB]ipsec-transform-set-tran1]quit [RTB]ipsec policy policy1 lisakmp [RTB]ipsec-policy-isakmp-policy1]transform-set tran1 [RTB]ipsec-policy-isakmp-policy1]security acl3000 [RTB]ipsec-policy-isakmp-policy1]remote address 100.1.1.1 [RTB]ipsec-policy-isakmp-policy1]ike-profileprofile1 [RTB]ipsec-policy-isakmp-policy1]quit [RTB]interface Gigabit Ethernet 0/0 [RTB]GigabitEthernet0]ip address 10.3.1.1255.255.255.0 [RTB]GigabitEthernet0/0]quit[RTB]interface LoopBack 0 [RTB]LoopBack0]ip address2.2.2.2255 255.255.255 [RTB]LoopBack0]quit[RTB]interface Serial 1/0 [RTB]Serial1/0]ip address10.2.1.2255.255.255.0 [RTB]Serial1/0]quit [RTB]interface Tunnell mode gre [RTB]Tunnell]ip address 100.1.1.2255.255.255.0 [RTB]Tunnell]source2.2.2.2 [RTB]Tunnell]destination 1.1.1.1 [RTB]Tunnell]ipsec apply policy policy1 [RTB]Tunnell]quit [RTB]ip route-static 1.1.1.1255 255255.25510.2.1.1 [RTB]ip route-static 10.1.1.0 255 255.255.0 Tunnel 1

如图所示，两台安全网关的配置分别为: RTA: [RTA]ike proposal 1 [RTA]ike-proposal-1]quit [RTA]ike keychain keychain1 [RTA]ike-keychain-keychain1]pre-shared-keyaddress 10.2.1.2 key simple h3c [RTA]ike-keychain-keychain1]quit [RTA]ike profile profile1 [RTA]ike-profile-profile1]keychain keychain1 [RTA]ike-profile-profile1]local-identityaddress10.2.1.1 [RTA]ike-profile-profile1]match remote identity address10.2.1.2 [RTA]ike-profile-profile1]proposal 1 [RTA]ike-profile-profile1]quit [RTA]acladvanced 3000 [RTA]acl-ipv4-adv-3000]rule 0 permit ip source10.1.1.00.0.0.255 [RTA]acl-ipv4-adv-3000]quit [RTA]ipsec-transform-set tran1] [RTA]ipsec-transform-set-tran1]esp encryption-algorithm 3des-cbc [RTA]ipsec-transform-set-tran1]esp authentication-algorithmmd5 [RTA]ipsec-transform-set-tran1]quit [RTA]ipsec-policy-policy1] lisakmp [RTA]ipsec-policy-isakmp-policy1]transform-set tran1 [RTA]ipsec-policy-isakmp-policy1]security acl3000 [RTA]ipsec-policy-isakmp-policy1]remote address 10.2.1.2 [RTA]ipsec-policy-isakmp-policy1]ike-profile1 [RTA]ipsec-policy-isakmp-policy1]quit [RTA]interface Gigabit Ethernet 0/0 [RTA]Gigabit Ethernet/0]ip address 10.1.1.2.255.255.255.0 [RTA]Gigabit Ethernet/0]quit [RTA]interface Serial 1/0 [RTA]Serial1/0]ip address 10.2.1.1.255.255.255.0 [RTA]Serial1/0]ipsec apply policy policy1 [RTA]Serial1/0]quit [RTA]ip route-static 10.3.1.0255255.255.255.0 Serial 1/0 RTB: [RTB]ike proposal 1 [RTB]ike-proposal-1]quit [RTB]ike keychain keychain1 [RTB]ike-keychain-keychain1]pre-shared-key address 10.2.1.1 key simple h3c [RTB]ike-keychain-keychain1]quit [RTB]ike profile profile1 [RTB]ike-profile-profile1]keychain keychain1 [RTB]ike-profile-profile1]local-identity address10.2.1.2 [RTB]ike-profile-profile1]match remote identityaddress 10.2.1.1 [RTB]ike-profile-profile1]proposal1 [RTB]ike-profile-profile1]quit [RTB]acl advanced 3000 [RTB]acl-ipv4-adv-3000]rule 0 permit ipsorce10.3.1.00.0.0.255 [RTB]aclipv4-adv-3000]quit [RTB]ipsec transform-set tran1 [RTB]ipsec-transform-set-tran1]esp encryption algorithm 3des-cbc [RTB]ipsec-transform-set-tran1]esp authentication-algorithm md5 [RTB]ipsec-transform-set-tran1]quit [RTB]ipsec policy policy1 lisakmp [RTB]ipsec-policy-isakmp-policy1]transform-set tran1 [RTB]ipsec-policy-isakmp-policy1]securityac3000 [RTB]ipsec-policy-isakmp-policy1]remote-address 10.2.1.1 [RTB]ipsec-policy-isakmp-policy1]ike-profile1 [RTB]ipsec-policy-isakmp-policy1]quit [RTB]interface Gigabit Ethernet 0/0 [RTB]Gigabit Ethernet/0]ip address 10.3.1.1255.255.255.0 [RTB]Gigabit Ethernet/0]quit [RTB]interface Serial 1/0 [RTB]Serial1/0]ip address10.2.1.2255 255.255.0 [RTB]Serial1/0]ipsec apply policy policy1 [RTB]Serial1/0]quit [RTB]ip route-static 10.3.1.0255.255.255.0 Serial 1/0由此可知()

EVPN定义了几种BGPEVPN路由类型,下列哪种类型的路由,用于VTEP的自动发现和VXLAN隧道的动态建立?

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