From: Johnny Dedon (johnny.dedon@xxxxxxxxxx)
Date: Sun Feb 25 2001 - 19:22:16 GMT-3
I just recreated the frame-relay design listed in this thread and I found
that nothing at all changes with a reboot. All dynamic mappings remain and
all host are reachable both before and after the reboot.
R1#
interface Serial0
ip address 172.168.100.1 255.255.255.0
encapsulation frame-relay
no ip mroute-cache
frame-relay map ip 172.168.100.3 104
R2#
interface Serial0
ip address 172.168.100.2 255.255.255.0
encapsulation frame-relay
no ip mroute-cache
frame-relay map ip 172.168.100.3 204
R3#
interface Serial0
ip address 172.168.100.3 255.255.255.0
encapsulation frame-relay
no ip mroute-cache
frame-relay map ip 172.168.100.1 304 broadcast
frame-relay map ip 172.168.100.2 304 broadcast
r4#
interface Serial0
ip address 172.168.100.4 255.255.255.0
encapsulation frame-relay
no ip mroute-cache
R1#sho frame map
Serial0 (up): ip 172.168.100.2 dlci 102(0x66,0x1860), dynamic,
broadcast,, status defined, active
Serial0 (up): ip 172.168.100.3 dlci 104(0x68,0x1880), static,
CISCO, status defined, active
Serial0 (up): ip 172.168.100.4 dlci 104(0x68,0x1880), dynamic,
broadcast,, status defined, active
R2#sho frame map
Serial0 (up): ip 172.168.100.1 dlci 201(0xC9,0x3090), dynamic,
broadcast,, status defined, active
Serial0 (up): ip 172.168.100.3 dlci 204(0xCC,0x30C0), static,
CISCO, status defined, active
Serial0 (up): ip 172.168.100.4 dlci 204(0xCC,0x30C0), dynamic,
broadcast,, status defined, active
R3#sho frame map
Serial0 (up): ip 172.168.100.1 dlci 304(0x130,0x4C00), static,
broadcast,
CISCO, status defined, active
Serial0 (up): ip 172.168.100.2 dlci 304(0x130,0x4C00), static,
broadcast,
CISCO, status defined, active
Serial0 (up): ip 172.168.100.4 dlci 304(0x130,0x4C00), dynamic,
broadcast,, status defined, active
R4#sho frame map
Serial0 (up): ip 172.168.100.1 dlci 401(0x191,0x6410), dynamic,
broadcast,, status defined, active
Serial0 (up): ip 172.168.100.2 dlci 402(0x192,0x6420), dynamic,
broadcast,, status defined, active
Serial0 (up): ip 172.168.100.3 dlci 403(0x193,0x6430), dynamic,
broadcast,, status defined, active
I am running 11.2 and 11.3 code.
Johnny Dedon
Senior Staff Consultant
Exodus Professional Services
johnny.dedon@exodus.net
www.exodus.net
----- Original Message -----
From: "Chuck Larrieu" <chuck@cl.cncdsl.com>
To: "Andy Needham" <andy.needham@tesco.net>; <ccielab@groupstudy.com>
Sent: Sunday, February 25, 2001 12:52 PM
Subject: RE: Frame Relay Inverse-Arp + Map Statement
> Guys, I've read through the other answers posted today. I also went into
the
> archives and read through a few things posted on a similar topic a couple
of
> weeks ago. I also checked the CD for information.
>
> Here is what the CD says ( paraphrased ) when a static map is applied,
> inverse arp for the same protocol mapped to the same dlci is disabled. I
> read the implication that inverse arp for other dlci's is not disabled.
>
> I see no notices in any of the 12.x release notes or config guides that
the
> disabling of inverse arp in response to static maps has changed.
>
> In the case below, I drew it out to see what I can see. If everything
works
> the way it is supposed to, even after a reload a show frame map should see
> the following:
>
> R1 - 112 dynamic and 114 static
> R2 - 121 dynamic and 124 static
> R3 - 134 static
> R4 - everything dynamic
>
> Your show ip route should still show all your networks. I would guess that
> in appearance, nothing would change in your routing tables. You would
still
> see everything. You would probably not be able to ping certain other
> interfaces.
>
> Is this making sense? I am pretty sure I am understanding the dynamic. I
am
> not sure that I am explaining what I am understanding.
>
> Andy, would you be willing to reconfigure everything from scratch, do a
show
> ip route and show frame map from a couple of the routers, then reload them
> all, repeat the show commands, and provide us with a before and after?
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Andy
> Needham
> Sent: Sunday, February 25, 2001 3:00 AM
> To: ccielab@groupstudy.com
> Subject: Frame Relay Inverse-Arp + Map Statement
>
>
> I figured I knew Frame-Relay issues until today !!
>
> I have a scenario whereby I am running a Frame-Relay Switch with 4
> Remote Spokes.
>
> R1 (s0) 172.1.4.1 ---------> (s0) FrameSwitch
> R2 (s0) 172.1.4.2 ---------> (s3) FrameSwitch
> R3 (s0) 172.1.4.3 ---------> (s1) FrameSwitch
> R4 (s0) 172.1.4.4 ---------> (s2) FrameSwitch
>
> The Frame Network is partial mesh, no PVC's are configured between
> R1 and R3, R2 and R3.
>
> FrameSwitch Config :
>
> interface Serial0
> frame-relay route 112 interface Serial3 121
> frame-relay route 114 interface Serial2 141
> !
> interface Serial1
> frame-relay route 134 interface Serial2 143
> !
> interface Serial2
> frame-relay route 141 interface Serial0 114
> frame-relay route 142 interface Serial3 124
> frame-relay route 143 interface Serial1 134
> !
> interface Serial3
> frame-relay route 121 interface Serial0 112
> frame-relay route 124 interface Serial2 142
> !
>
> Physical Interfaces are being used at all 4 spokes and in order to
> create
> a full mesh I have configured Map statements at R1, R2 and R3.
>
> So great, everything works, all Networks available from all Routers. I
> now
> reload the Routers and expect my Network to run into problems.
>
> According to Caslow 2nd Edition, Page 118, "if the Router is reloaded,
> Inverse-Arp
> will be disabled for any DLCI that is used with a frame-relay map
> Statement"
>
> The Routers reload, the network comes up, all networks are visible !!.
> The Static
> and Dynamic Maps are still valid.
>
> Is this an IOS level issue (I am running 12.0.8) or am I completely
> missing the point ?.
>
> Thanks,
>
> Andy
>
> R1 S0 Config :
> !
> interface Serial0
> ip address 172.1.4.1 255.255.254.0
> no ip directed-broadcast
> encapsulation frame-relay
> no ip mroute-cache
> no fair-queue
> frame-relay map ip 172.1.4.3 114 broadcast
> end
>
> R2 S0 Config :
> !
> interface Serial0
> ip address 172.1.4.2 255.255.254.0
> no ip directed-broadcast
> encapsulation frame-relay
> no ip mroute-cache
> no fair-queue
> frame-relay map ip 172.1.4.3 124 broadcast
> end
>
> R3 S0 Config :
> !
> interface Serial0
> ip address 172.1.4.3 255.255.254.0
> no ip directed-broadcast
> encapsulation frame-relay
> no ip mroute-cache
> no fair-queue
> frame-relay map ip 172.1.4.1 134 broadcast
> frame-relay map ip 172.1.4.2 134 broadcast
> end
>
> R4 S0 Config :
> !
> interface Serial0
> ip address 172.1.4.4 255.255.254.0
> no ip directed-broadcast
> encapsulation frame-relay
> no ip split-horizon eigrp 1
> no ip mroute-cache
> no fair-queue
> end
>
>
>
>
>
>
>
>
>
>
>
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:29:00 GMT-3