From: Michael Snyder (msnyder@xxxxxxx)
Date: Sun May 26 2002 - 12:04:44 GMT-3
Question One.
First a little background on how my lab is setup. The core of my lab is
seven 2500 routers and a Cat 5002. At this time, I'm not using
timestamps in my debug messages, mainly because non-sync'ed messages
don't help much. Instead I use the sequence-number service.
No service timestamps debug
No service timestamps log
Service sequence-numbers
Also, I never write configs to my routers. They have a default config
(mainly alias and clock rate commands). After each lab I simply reload
or power cycle the routers and start on the new lab.
Now my question, I have noticed that the Cat has a very good clock, and
also has a set of ntp commands. I know it's a good clock because I
bought the chassis damaged, after it had set a shelf for 6 months.
After I repaired the chassis and booted it up. It had the right time
and date to the minute.
Is there a easy way to tell the 5002 to broadcast ntp to every vlan? I
change vlans often, and would like a general command to tell the 5002,
if it's a vlan, then it should broadcast time on it.
On the client side, adding 'ntp broadcast client' to my default configs
would be pretty easy.
Question Two.
I use very plain serial configs with back to back cables often.
Example.
Int serial 0
Clock rate 56000
Ip address 10.1.1.1 255.255.255.252
No shut
Which I never have a problem with. The other day, after doing some
frame-relay, I thought it would be handy to start using subinterfaces on
my back to back connections.
Int serial 0
Clock rate 56000
No shut
Int serial 0.1
Ip address 10.1.1.1 255.255.255.252
The router didn't give me any errors, but It wouldn't ping the opposing
serial 0.1 interface for anything. The 'show ip int brie' command showed
up and up. I reverted back to my normal config, and it worked fine.
Question, why? Won't hdlc support subinterfaces in this matter? If
not, why didn't it give any error messages?
The reason I tried to do this, is I was thinking of using serial x.1
interfaces for IP and serial x.2 interfaces of IPX. Figured it would
help with the reading the configs, etc.
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