It320 Hmwk 4.1

Wan Technology/ Unit 4 Assignment 4. 1 1. At what horizontal surface of the OSI model does CDP operate? Data Link story 2. What is the primary use for CDP? To discover tuition about directly affiliated Cisco devices 3. What network layer protocols mountain CDP provide information for? IP, Internetwork Packet Exchange (IPX), and AppleTalk 4. When CDP is enabled on an port wine, a router (or switch) sends CDP ads on a regular basis, which list information about the sending router. include in the packets are a series of Type/Length/Value, or TLV, data structures. . The found cdp neighbors mastery can be used to display wizard argument of information about each directly connected CDP-enabled device. contestation the six pieces of information displayed. Device ID, local interface, hold m, capability, platform, and port ID 6. In the topology of whole Cisco devices shown in Figure 4-1, you are on Host A and consoled in to RTA. What devices can you see in the widening from CDP commands? SWA, RTB, and RTConly the directly connected devices that are attached to RTA 7. How would you gather information about other CDP-enabled devices in the network?By Telneting to those devices and using the show cdp neighbors command 8. From RTB in Figure 4-1, what devices can you see in the output from CDP commands? RTA and RTD 9. From RTC in Figure 4-1, what devices can you see in the output from CDP commands? RTA and RTD 10. From RTD in Figure 4-1, what devices can you see in the output from CDP commands? RTB, RTC, and SWB 11. cdp run Global Enables CDP globally on the router. cdp enable Interface Enables CDP on an interface. lear cdp counters Privileged EXEC mode Resets the dealing counters to 0. show cdp entry User or inside EXEC mode Displays information about a specific neighbor. show cdp interface User or privileged EXEC mode Displays information about interfaces on which CDP is enabled. show cdp neighbors detail User or privileged EXEC mode Displays at least six pi eces of information about the neighbor 12. The cdp run command enables CDP globally on the router. By default, CDP is globally enabled. The enable cdp command enables CDP on a particular interface. 13.Fill in the appropriate commands in the configuration/output that follows RTC(config)cdp run_ < Command that will start CDP RTC(config)interface Ethernet 0 RTC(config-if)no cdp enable < Turn off CDP on this interface RTC(config-if)end 14. Why would you want to disable CDP on an interface or globally? CDP advertisements contain a wealth of information about your networking devices Ethernet0 is up, line protocol is upEncapsulation ARPA displace CDP packets every 60 entropyonds Holdtime is 180 seconds Serial0 is up, line protocol is up Encapsulation HDLC Sending CDP packets every 60 secondsHoldtime is 180 seconds Serial1 is administratively down, line protocol is down Encapsulation HDLC Sending CDP packets every 60 seconds Holdtime is 180 seconds 15. Fill in the appropriate commands in the configuration/output that follows RTC show cdp Global CDP information Sending CDP packets every 60 seconds Sending a holdtime value of 180 seconds Sending CDPv2 advertisements is enabled RTC show cdp craft < Command to display cdp statistics CDP counters Total packets output 70, Input 34 Hdr syntax 0, Chksum error 0, Encaps failed 0 No memory 0, Invalid packet 0, Fragmented 0CDP magnetic variation 1 advertisements output 0, Input 0 CDP version 2 advertisements output 70, Input 34 RTC clear cdp counters < Command to reset traffic statistics RTC show cdp traffic < Command to display cdp statistics CDP counters Total packets output 0, Input 0 Hdr syntax 0, Chksum error 0, Encaps failed 0 No memory 0, Invalid packet 0, Fragmented 0 CDP version 1 advertisements output 0, Input 0 CDP version 2 advertisements output 0, Input 0 RTC show cdp neighbors Capability Codes R Router, T Trans Bridge, B Source Route Bridge S Switch, H Host, I IGMP, r RepeaterDevice ID Local Intrfce Holdtme Capability Platform Port ID RTA Ser 0 167 R 2500 Ser 0 RTB Ser 1 129 R 2500 Ser 0 RTC show cdp neighbors detail - Device ID RTA Entry address(es) IP address 172. 17. 0. 2 Platform cisco 2500, Capabilities Router Interface Serial0, Port ID (outgoing port) Serial0 Holdtime 130 sec Version Cisco Internetwork Operating System Software IOS 2500 Software (C2500-JS-L), Version 12. 2(13b), RELEASE SOFTWARE (fc1) Copyright (c) 1986-2003 by cisco Systems, Inc. Compiled Thu 20-Feb-03 1409 by pwade advertisement version 2RTC show cdp interface Ethernet0 is up, line protocol is up 122 Routers and Routing Basics CCNA 2 Labs and Study Guide Encapsulation ARPA Sending CDP packets every 60 seconds Holdtime is 180 seconds Serial0 is up, line protocol is up Encapsulation HDLC Sending CDP packets every 60 seconds Holdtime is 180 seconds Serial1 is administratively down, line protocol is down Encapsulation HDLC Sending CDP packets every 60 seconds Holdtime is 180 seconds 16. List and briefly describe the rectify options displayed after entering the following command RTBdebug cdp ? adjacency CDP neighbor info vents CDP events ip CDP ip info packets CDP packet-related information 17. Fill in the table that follows. Command Description clear cdp table Deletes the CDP table of information about neighbors show debugging Displays information about the types of debugging that are enabled for your router debug cdp adjacency Displays informational messages in real time when the status of a CDP neighbor changes debug cdp events Displays informational messages about any event that occurs with CDP debug cdp ip Displays informational messages each time a router learns IP information with CDP dp timers A global configuration command that sets the CDP update timer cdp holdtime A global configuration command that specifies the CDP holdtime PG 119-122 1. Telnet 2. quintet 0-4 3. ICMP Traceroute TTL Network 4. (7) talent (3) ping traceroute show ip route (2) show cdp neighbors show interfaces 5. telnet dfw ,telnet 192. 168. 1. 1, DFW , 192. 168. 1. 1 6. exit or logout 7. Ctrl-Shift-6,x 8. resume 1, where 1 is the sessions connection number 9. The session with the * is the most recent. 10. press Enter at the privileged or user EXEC prompt 11. show ip route 12. To plan of attack the command-line interface of a remote device 13.That connectivity along the path to DFW is good up to and including AUS 14. 14. Telnet into AUS and use troubleshooting commands to ascertain why connectivity has failed beyond AUS. The first commands would more than presumable be show ip route or show ip interface 15. Ctrl-Shift-6,x Pg124 1. CDP only shows information about directly connected Cisco devices. Router 1 is the only device directly connected to all other devices 2. The clock rate is set to 56000, and the interface is xxx for this topology The no shutdown command brings up the interface. 3. 2 Serial 0 and FastEthernet 0