Question regading dynamips

nice343

ROUTER R1

s1/0 = F1 1



ROUTER R2

s1/0 = F1 2



ROUTER R3

s1/0 = F1 3





FRSW F1

1:102 = 2:201

1:103 = 3:301

2:203 = 3:302



How will the frame-relay switching be confgured on the frame-relay switch

Ciscopimpenator

I just started playing around with dynamips/dynagen this weekend and I love it! It's the greatest thing to happen to Cisco cert preparation in the last 10 years!



Back to your question:

The FRSW(frame relay switch) by default is only a frame switch. You don't have to configure it to be a frame switch because that's all it does.

The problem with using dynamips, from what I know, is that PVC's are always active(as opposed to inactive or deleted). But in the grand scheme of things it's really unimportant.


Don't worry too much about the frame switch except knowing what the purpose is and how to configure it.

Port:dlci = port:dlci

nice343

Ciscopimpenator wrote:

I just started playing around with dynamips/dynagen this weekend and I love it! It's the greatest thing to happen to Cisco cert preparation in the last 10 years!



Back to your question:

The FRSW(frame relay switch) by default is only a frame switch. You don't have to configure it to be a frame switch because that's all it does.

The problem with using dynamips, from what I know, is that PVC's are always active(as opposed to inactive or deleted). But in the grand scheme of things it's really unimportant.


Don't worry too much about the frame switch except knowing what the purpose is and how to configure it.

Port:dlci = port:dlci

so how do you configure R1, R2 and R3 in this situation for Frame-relay?

Thanks

mikej412

nice343 wrote:

so how do you configure R1, R2 and R3 in this situation for Frame-relay?

You'd configure them just like real routers..... depending on what you wanted to do.

Using the physical interfaces and inverse arp for a quick and easy full mesh solution:

R1#show run interface serial 1/0
Building configuration...

Current configuration : 113 bytes
!
interface Serial1/0
 ip address 10.0.0.1 255.255.255.0
 encapsulation frame-relay
 serial restart-delay 0
end

R1#
R1#show frame pvc | include ACTIVE
DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
DLCI = 103, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
R1#
R1#show frame map
Serial1/0 (up): ip 10.0.0.2 dlci 102(0x66,0x1860), dynamic,
              broadcast,, status defined, active
Serial1/0 (up): ip 10.0.0.3 dlci 103(0x67,0x1870), dynamic,
              broadcast,, status defined, active
R1#

R2#show run interface serial 1/0
Building configuration...

Current configuration : 113 bytes
!
interface Serial1/0
 ip address 10.0.0.2 255.255.255.0
 encapsulation frame-relay
 serial restart-delay 0
end

R2#
R2#show frame pvc | include ACTIVE
DLCI = 201, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
DLCI = 203, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
R2#
R2#show frame map
Serial1/0 (up): ip 10.0.0.1 dlci 201(0xC9,0x3090), dynamic,
              broadcast,, status defined, active
Serial1/0 (up): ip 10.0.0.3 dlci 203(0xCB,0x30B0), dynamic,
              broadcast,, status defined, active
R2#

R3#show run interface serial 1/0
Building configuration...

Current configuration : 113 bytes
!
interface Serial1/0
 ip address 10.0.0.3 255.255.255.0
 encapsulation frame-relay
 serial restart-delay 0
end

R3#
R3#show frame pvc | include ACTIVE
DLCI = 301, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
DLCI = 302, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
R3#
R3#show frame map
Serial1/0 (up): ip 10.0.0.1 dlci 301(0x12D,0x48D0), dynamic,
              broadcast,, status defined, active
Serial1/0 (up): ip 10.0.0.2 dlci 302(0x12E,0x48E0), dynamic,
              broadcast,, status defined, active
R3#ping 10.0.0.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/49/132 ms
R3#ping 10.0.0.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/50/100 ms
R3#

Ciscopimpenator

nice343 wrote:

ROUTER R1

s1/0 = F1 1



ROUTER R2

s1/0 = F1 2



ROUTER R3

s1/0 = F1 3





FRSW F1

1:102 = 2:201

1:103 = 3:301

2:203 = 3:302



How will the frame-relay switching be confgured on the frame-relay switch

Router 1 talks to Router 2
Router 1 talks to Router 3
Router 2 talks to Router 3

The DLCI's they use to connect to frame switch are listed above^^^^

1:102 = 2:201 <<<<<<<<This line means router 1 and router 2 connected by PVC...
router 1 uses DLCI 102 and router 2 uses DLCI 201

nice343

I have two more question regarding dynamips.

why does some of the labs start with

autostart = false


and also what do these slots mean?
Are they interfaces on a router? I know about WIC's but I have never seen this one before
slot0 = NM-4E
slot1 = NM-4T

mikej412

nice343 wrote:

why does some of the labs start with

autostart = false

If you have multiple routers and haven't uncompressed the IOS image, you wouldn't want all your emulated routers starting at one time (and doing the emulated decompression).

nice343 wrote:

and also what do these slots mean?
Are they interfaces on a router? I know about WIC's but I have never seen this one before
slot0 = NM-4E
slot1 = NM-4T

Modular routers were covered when I took the Cisco CCNA Network Academy courses.... a 2600 router has 2 WIC slots and an NM slot. You can install different available modules to get various network interface options.

3600 routers have NM Slots (and NMs can come with WIC or VIC slots). The 3620s have 2 NM slots. The 3640s have 4 NM slots.

7200 routers have the PAs.....

You can read the "all_config_options.txt" file in the Dynagen sample labs directory to get an idea what modules are available to "install" in your emulated routers (and also find out what routers can be emulated).

nice343

mikej412 wrote:

nice343 wrote:

why does some of the labs start with

autostart = false

If you have multiple routers and haven't uncompressed the IOS image, you wouldn't want all your emulated routers starting at one time (and doing the emulated decompression).

nice343 wrote:

and also what do these slots mean?
Are they interfaces on a router? I know about WIC's but I have never seen this one before
slot0 = NM-4E
slot1 = NM-4T

Modular routers were covered when I took the Cisco CCNA Network Academy courses.... a 2600 router has 2 WIC slots and an NM slot. You can install different available modules to get various network interface options.

3600 routers have NM Slots (and NMs can come with WIC or VIC slots). The 3620s have 2 NM slots. The 3640s have 4 NM slots.

7200 routers have the PAs.....

You can read the "all_config_options.txt" file in the Dynagen sample labs directory to get an idea what modules are available to "install" in your emulated routers (and also find out what routers can be emulated).

why don't they just label it as serial or any another WIC? why label it as slot0 = NM-4E