CCNA 3 Labs and Study Guide - BINARYBB.INFO – @jagalbraith

Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms
RTA#ping 192.168.1.129
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.129, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms
Task 4: Modify OSPF Cost
Step 1. At this point, all routers are using the default bandwidth for serial interfaces: for 2500s and
2600s, 1544 kbps; for 1700s, 128 kbps. Use the show interface serial command to view the
bandwidth used to calculate cost.
RTB#show interface s0/0
Serial0/0 is up, line protocol is up
Hardware is PowerQUICC Serial
Description: Link to RTC
Internet address is 192.168.1.249/30
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
(output omitted)
Step 2. When RTB pings the LAN interface on RTC, it sends it directly to RTC even though the path
through RTA is faster.
RTB#traceroute 192.168.1.129
Type escape sequence to abort.
Tracing the route to 192.168.1.129
1 RTC (192.168.1.250) 16 msec * 12 msec
RTB#
Step 3. Configure both RTB and RTC with the correct bandwidth.
RTB(config)#interface s0/0
RTB(config-if)#bandwidth 386
!
RTC(config)#interface s0/1
RTC(config-if)#bandwidth 386
Step 4. Verify that RTB sends pings destined for the LAN on RTC to RTA, which then routes the ping
to RTC.
RTB#traceroute 192.168.1.129
Type escape sequence to abort.
Tracing the route to 192.168.1.129
1 RTA (192.168.1.245) 16 msec 12 msec 16 msec
2 RTC (192.168.1.253) 28 msec * 16 msec
RTB#
Chapter 2: Single-Area OSPF 159