Some questions about IOS and New Routers

[Frank]

What makes the new model of a cisco router 2800 different from the old model of cisco router eg.2600 or 2500 series?

Do new model routers have better speed because they have higher CPU
and RAM? Is it true that new Routers also have better security features?

[Big Evil]

There are many new features. Including modules and IOS features.
Yes you can get more DRAM/Flash in them.

They also are louder, turn one on and it sound like a plane taking off. LOL...

[Frank]

Can you pls list those new features?

Do you mean Flash memory by DRAM?

Thanks

[Big Evil]

Have read over the data sheet, as there is too much to list.

http://cisco.com/en/US/prod/collateral/routers/ps5854/ps5882/product_data_sheet0900aecd8016fa68_ps5854_Products _Data_Sheet.html

http://www.cisco.com/en/US/products/hw/routers/ps259/index.html

[TheDon]

And I believe the 2800's automatically set the clockrate of DCE to 2Mbps ;)

[Frank]

pls correct me if i am wrong,we set the bandwidth on the router using clockrate,right?
It is set from DCE to DTE

[HermeszData]

pls correct me if i am wrong,we set the bandwidth on the router using clockrate,right?
It is set from DCE to DTE

These are two totally different commands, each performing completely functions.

Clockrate (or Clock Rate, depending on the IOS) sets the communication speed of a serial interface.

The bandwidth command, for CCNA Scope, is used by some routing protocols in calculations to determine path costs.

[Frank]

Ok,so it means that clockrate sets the communication speed of a serial interface.
With this set speed the serial interface of the router can communicate with any ISP Modem or Server,right?

By this path cost u mean the route path that is defined in the routing table of a router,right?

[HermeszData]

Ok,so it means that clockrate sets the communication speed of a serial interface.
With this set speed the serial interface of the router can communicate with any ISP Modem or Server,right?

By this path cost u mean the route path that is defined in the routing table of a router,right?

on directly connected serial interfaces. So, :

IF the clockrate supplied by your ISP on a serial link is 128000, then you must set the clockrate to match the ISP supplied rate.

To your second question, YES

[TheDon]

on directly connected serial interfaces. So, :

IF the clockrate supplied by your ISP on a serial link is 128000, then you must set the clockrate to match the ISP supplied rate.

To your second question, YES
Just wondering. The ISP would be in effect, the DCE (supplying the clockrate), and therefore wouldn't our Cisco equipment (DTE) pick it up automatically as there's nothing to set?

I thought that only one end sets the clockrate (DCE) to the (DTE).

[Big Evil]

Just wondering. The ISP would be in effect, the DCE (supplying the clockrate), and therefore wouldn't our Cisco equipment (DTE) pick it up automatically as there's nothing to set?

I thought that only one end sets the clockrate (DCE) to the (DTE).

This is correct.

[HermeszData]

This is correct.

Yet, this is somewhat interface dependant. Correct?

I have WIC-1DSU-T1 (also WIC-1DSU-56K) interfaces that if you do not supply at least the Clock Source specs, they not come up!



I have been working with a lab manual (recommended on another site) that has soooooo many errors in the basic configs that I am now much craizier than when I began yesterday. Simple things like not having the clock rates, omitted commands in the frame-relay configs (No Clock Rates specified in the frame Relay routers configs.)

It has been very good for troubleshooting, but this is chapter 5 of the Lab Manual and troubleshooting comes along in several chapters.

In any case, I am trying to get my desktop here to like a 2nd NIC I installed and set up on a completely different network so I can do some additional lab work without having to re-config my primary NIC everytime I want to play with the "LAB"

[TheDon]

I'll be getting the WIC cards/cables in a few days and shall play around with it all then. Should be fun :D