Cisco 2600 router question
I have a cisco 2600 series router, it has 2 ethernet ports, i want to config these to run at a certain speed, does any know how to set the speed on these interfaces, i can run a #sh interfaces - cmd to see the interfaces, but can't see the speed they are running at. also is it true that only the fastethernet modules can run at 100mb/Full duplex.
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What model is it. Only the 262x, 265x and any router with XM after it has 10/100 interfaces. The 261x only has 10MB interfaces.
Si |
also is it true that only the fastethernet modules can run at 100mb/Full duplex. Chris |
Originally Posted by SiCotty
What model is it. Only the 262x, 265x and any router with XM after it has 10/100 interfaces. The 261x only has 10MB interfaces.
Si |
do a "sh ip int brief" which will give a list of interfaces
10 meg only interfaces show as "Ethernet 0/0" or similair 100 meg Capable interfaces show as "FastEthernet 0/0" or similair A "sh ver" should help identify the model. if you then do "sh int fa0/0" it will tell you whether its full-duplex or not Deano |
e.g.
router#sh ip int brief Interface IP-Address OK? Method Status Prot ocol FastEthernet0/0 1.2.3.4 YES NVRAM up up FastEthernet0/1 5.6.7.8 YES NVRAM up up Ethernet1/0 1.1.1.1 YES NVRAM up up Serial1/0 unassigned YES unset administratively down down Ethernet1/1 unassigned YES NVRAM administratively down down Loopback0 2.2.2.2 YES NVRAM up up router# router#sh int fa0/0 FastEthernet0/0 is up, line protocol is up Hardware is AmdFE, address is 0004.9af3.31d0 (bia 0004.9af3.31d0) Description: connection to a-catalyst po 4/2 Internet address is 1.2.3.4/24 MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, 100BaseTX/FX ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 57000 bits/sec, 37 packets/sec 5 minute output rate 318000 bits/sec, 71 packets/sec 413553120 packets input, 28994277 bytes Received 16842239 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog 0 input packets with dribble condition detected 655536459 packets output, 117963222 bytes, 0 underruns 0 output errors, 0 collisions, 5 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out router# |
It's a 2611, i have tried the "sh int fa0/0" this doesn't work.
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Originally Posted by Charlie_Boy
It's a 2611, i have tried the "sh int fa0/0" this doesn't work.
Router#sh ip interface brief Interface IP-Address OK? Method Status Protocol Ethernet0/0 xxx.xxx.xxx.xxx YES NVRAM up up BRI0/0 xxx.xxx.xxx.xxx YES NVRAM administratively down down BRI0/0:1 unassigned YES unset administratively down down BRI0/0:2 unassigned YES unset administratively down down Ethernet0/1 xxx.xxx.xxx.xxx YES NVRAM up up Router#sh interfaces Ethernet0/0 is up, line protocol is up Hardware is AmdP2, address is 0007.50bb.6240 (bia 0007.50bb.6240) Description: line 80 Internet address is xxx.xxx.xxx.xxx/27 MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load 1/255 Encapsulation ARPA, loopback not set, keepalive set (10 sec) ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters 4w3d Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 3000 bits/sec, 1 packets/sec 5 minute output rate 54000 bits/sec, 2 packets/sec 9522342 packets input, 1629502136 bytes, 0 no buffer Received 582299 broadcasts, 0 runts, 0 giants, 0 throttles 23657 input errors, 23657 CRC, 21516 frame, 0 overrun, 0 ignored, 0 abort 0 input packets with dribble condition detected 12995260 packets output, 3840312010 bytes, 1 underruns 708799 output errors, 73822 collisions, 708701 interface resets 0 babbles, 708753 late collision, 64916 deferred 45 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out |
if its just ethernet, then there is no need to check the speed, ethernet is 10mbps, fa is 100mbps, i think it presumes you know that?
You can try the ? in the interfaces menu to see the duplex commands? |
If its a 10 Mb.s only interface (e.g Ethernet 0/0), you can't set it to full-duplex. You're stuck with Half.
Deano |
Originally Posted by dsmith
If its a 10 Mb.s only interface (e.g Ethernet 0/0), you can't set it to full-duplex. You're stuck with Half.
Deano |
Apply "Commited Access Rates" or "CAR" to each interface.
e.g. (taken from live example) interface FastEthernet1/0 description xxxx LAN - Rate Limited to 2 Mbps ip address 1.2.3.4 255.255.255.240 ip access-group 180 in no ip redirects no ip directed-broadcast rate-limit input 2000000 8000 16000 conform-action transmit exceed-action drop rate-limit output 2000000 8000 16000 conform-action transmit exceed-action drop full-duplex standby 10 priority 105 standby 10 preempt standby 10 ip 1.2.3.5 standby 10 track FastEthernet0/1 The 1st number is the speed in bits/sec you want. The 2nd and 3rd numbers are the excess and normal "burst sizes" allowed. Essentially the smaller these are the "harder" the limit will be. In fact too small and you'll struggle to reach your intended speed. There are no exact rules for calculating them (different people have differing views) For the Speeds you mention I'd use 2Mb/s = 2000000 8000 16000 (as above - quite "generous" bursts) 5Mb/s = 5000000 10000 20000 10 mb/s = 10000000 16000 32000 Use the "sh int fa 0/0 rate-limit" command to view if excess traffic is being dropped etc. Plenty of Docs on CCO - eg. This One Deano |
Cheers Deano. Appreciated....
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