An AS-path-filter uses the regular expression ^[0-9]+$ to indicate all as-path attributes.
Router HW1 is seeing a large number of Discard Eligible (DE) frames. In Frame-relay, as part of the Congestion-Control Mechanism, the DE bit works in conjunction with which of the following mechanisms?
The output of the display in vpn-instance verbose command for displaying detailed information about all VPN instances on a network device is as follows.
Which of the following statements are false?
The Next Header field only exists in the basic header of an IPv6 packet, and its function is only to indicate whether the IPv6 packet has an extension header.
HW has a Frame Relay network with two sites (a headquarters site and a remote site) connected by a single PVC. RIP version 2 is running in the network. A new remote site is added and HW has ordered a second PVC between this site and the headquarters site. All Frame Relay interface IP addresses are in a single subnet. The customer configured Frame Relay DLCI mappings and can successfully ping from the new remote to the headquarters site as well as to the other remote site. However, the new router does not have a route in its route table to the other remote site’s LAN, and cannot ping the LAN interface or any hosts on that LAN. What is most likely causing the problem?
As shown in the figure, two IPv6 networks need to access the IPv4 network. An IPsec tunnel needs to be established between the two IPv6 networks to enable communication. Which of the following encapsulation modes can meet the preceding requirements?
Compared with IGMPv1 IGMPv2 ( ), what changes have been made? Multiple selection
NSR (Non-Stopping-Forwarding) NSR Non-Stopping Routing and non-stop routing (is two solutions for high reliability)
The following is correct in the case, saying
As shown, it is a link between R1 R2 PPP R1 R2 IP, and the direct interface is not connected to the same network segment, but can communicate with the straight interface, and the same rule
In the case where the Ethernet channel cannot communicate, what is the reason?
As shown in the figure, the routers load balances the traffic between Branch network 1 and Branch network 2. In this case, URPF in loose mode must be configured on a physical interface to defend against attacks using spoofed source IP addresses.
To improve delay and jitter on frame relay links, we can fragment and assemble the frame between multiple PVCs. This is similar to what happens with PPP multilink.
Assume that the traffic shaping rate is set to 100 Mbit/s on an interface and that the input bandwidth and PIR of each service are
configured as shown in the table below.
What is the bandwidth allocated to the EF queue after the first round of scheduling?
If a router receives a BGP route carrying the no-export community attribute, which of the following actions does the router take?
A Huawei router is configured to import a route into OSPF on an enterprise network. Which of the following statements about the LSA generated from the imported route are true?
Which of the following statements regarding the processing of BPDUs in 802.1w and 802.1D is true?
Which of the following address prefixes indicates that the address is a globally unique and globally routable IPv6 unicast address, similar to a public IPv4 address?
Which Multicast Protocols use Reverse Path Forwarding (RPF) information when sending multicast traffic streams towards receivers within HW routers? (Multiple Choice)
Two routers are connected through the serial port, but the interface cannot be pinged. See the port as follows:
(No map, one by one, you can find the reason without looking at it) PPP HDLC
The configuration of two routers in a company is as follows. The following is true about the routing table method.
As shown in the following topology, establish a phase relationship, and receive the AS400 AS100 1.1.1.1/32 AS-Path routing network. What is the attribute?
ISIS P2P, LSP, PSNP, LSDB protocol in the broadcast network and the network. When the router receives it, it needs to use the line to ensure the synchronization.
In the experimental network, the network is built according to the following topology. The SW1 SW2 STP is configured as the default and the function is disabled. The scene description is correct.
As shown in the figure, the R1 R2 ISIS R1 R2 ? neighbor relationship is established, and the data synchronization process with it is correct.
In the case of not dividing the area, the following is true about the road route description, ? chain state protocol
In order to reduce the number of OSPF, OSPF, and OSPF routes in some stub areas, a special area function protocol is opened. The following describes the characteristics of the special area correctly.
Is it?
The following rules regarding the attributes of the ISIS LSP protocol report are correct.
The following is about the address of the method VPNv4, ? said to describe the error
After the shutdown command is run on one of two directly connected devices that establish an IBGP peer relationship, the BGP connection will not be torn down immediately.
In the figure, the first record shown in LSP in the LSDP of a router, and the second record shown a newly received LSP, Which of the following statements is false?
The figure shows the topology and configuration. Which of the following method, can he used to exclude the specific route .0.0.3.3/32 from the routing table of R1?
On a Huawei device, when an external route is imported to IS-IS and the tag of the external route is set, the IS-IS metric type does not need to be changed, and the default style is retained.
Router HW1 and Router HW2 are connected to network A and B Network B respectively. Referring to the figure, if you want to set up an IPsec VPN tunnel between HW1 and HW2, which of the following ACL rules needs to be configured on HW1 to transmit the traffic across network A and B pass through the encrypted VPN tunnel?
As shown in the figure below, R1 and R2 are connected through a PPP link, and the IP addresses on the directly connected interfaces are not on the same network segment. Rl and R2 can communicate with each other through the directly connected interfaces. However, communication on the Ethernet link fails if the IP addresses on the directly connected interfaces are on the same network segment. What are the causes of this?
By default, WRED is configured on a newly deployed Huawei router. Which of following statements regarding WRED are true?
Routes received from AS100 match the AS-Path filter configured using the ip as-path-filter 10 permit _100$ command.
In the command, ipv4-address { mask | mask-length } [ as-set | attribute-policy route-policy-name1 ] detail suppressed | origin-policy route-policy-name2 | suppress-policy route-policy-name3 ] Parameters can be used to influence
Summary The route and its result. What is correct about the command description?
xThe existing Route-policy is as follows:
Ip community-filter 1 permit 100:1 ip as-path-filter 2 permit^100$
Route-policytest permit node 10
If-match community-filter 1
If-match as-path-filter 2
Apply as-path 200
What is the correct description about the above configuration?
A company's second network architecture, such as a layer map, when the project configuration is completed, the communicator can't find the business door, and the command looks like the following to check the device status.
Possible reasons are as follows
(No texture, anyway, the three elements are not consistent with the MSTP Master sample project.)
If the router only needs to forward IPv6, IPv4 packets, then there is no need to configure any of these and address protocols on the router.
BGP BGP introduces other post-routing protocols. The next hop in the routing table is consistent with the next hop of the redistributed route.
In the cross-domain mode, the VPN-Option B ASBR LSP is forwarded, and the two public network pairs are exchanged.
ISIS DIS DIS ?( ) will access the election in the broadcast multiplex network. The following is correct.
In the intranet, MPLS BGP VPNF, MPLS, and network packets are encapsulated into two layers when they are forwarded to the public network. The following two descriptions of the layer labels
What is wrong?
The router acts as the HW1 MPLS LSR HW, and the router exists in the network of the carrier. The router receives a message with the tag.
The item does not exist in its LFIB ? Then how does the router manage the text?
LDP IGP IGP LDP IGP IGP LDP and the communication are used to suppress the distribution of reachable routes to ensure that the network convergence is coordinated and the path is maintained.
Consistently, minimize the loss of traffic and improve the reliability of the entire network.
The following about the attribute BGP RD ( ) filter, is the description correct? Multiple selection
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TESTED 21 Nov 2024
