So let's fix this problem between Rotto one and twenty 951.
So on the router it's currently configured to use a speed of 100.
So I'm going to set the speed to auto this the router doesn't give me the option to set duplex.
So show run interface if a zero speed is auto show interface if zero speed is still half duplex.
The router can't negotiate with the switch.
So once again it moves to a fallback position of 10 make half duplex and this is what has caused a lot
of problem in the past because the one side such as the Rodda can't negotiate with the other side.
It simply moves to the lowest possible speed which is half duplex 10 megabits per second whereas the
switch is using full duplex so on the switch show run interface.
If a zero slash three speed is 10 duplexes is full Let's change that to speed Rod Speed auto
duplex
water
show run interface if Zeerust three no configuration show interface.
Is there a slash 3 notice.
It is now using 100 meg full duplex and on the router we are getting 100 make full duplex.
So thats a lot better.
The router and the switch have negotiated correctly to use 100 megabits per second full duplex.
So you can be paying probably two yes we can do a launch paying
large datagram size
pings are being sent without any problems.
We're not seeing any late collisions at the moment because the speed and duplex have negotiated properly.
This may indicate a problem somewhere else in the network.
At the moment everything looks good.
Show interface if the 0.
Now we still see late collisions but that's because of the previous counters.
So I'm going to clear the town counters and then do the command show interface 0 again and notice we
see zero late collisions.
So when looking at your output be careful of the information Klea counters and we could specify a specific
interface allows us to clear the counters on that interface so that we see fresh information.
So once again if we're paying
10 women to Hausen pings large packet size
we're sending some traffic on the site show interface if 0 three we've got the input errors and CRC
so clear count is 0 3.
We don't see any input errors and CRC is obviously you need to monitor that over a period of time.
So we are seeing a certain number of packets in a certain number of packets out so traffic is definitely
being sent and received and the interface we're not seeing any input errors which is better than what
we saw last time.
But you just need to monitor that for a period of time on the router show interface if zero we see the
number of packets input number of packets output we have no late collisions at the moment.
So that's a lot better than what we saw previously.
Now on this switch we still seeing another problem with a duplex mismatch to switch to.
So this connection here has a duplex problem.