RE: FRTS's Question for Multipoint Sub-interfaces

From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Fri Aug 22 2003 - 12:12:19 GMT-3


Config:
interface Serial0/0
encapsulation frame-relay
frame-relay traffic-shaping
frame-relay class FIRST_CLASS
!
interface Serial0/0.1 point-to-point
ip address 10.35.35.5 255.255.255.0
frame-relay interface-dlci 503
!
interface Serial0/0.2 multipoint
ip address 10.245.245.5 255.255.255.0
frame-relay class SECOND_CLASS
frame-relay map ip 10.1.1.2 502 broadcast
frame-relay map ip 10.1.1.4 504 broadcast
frame-relay interface-dlci 502
class THIRD_CLASS

In the above example DLCI 503 under subinterface Serial0/0.1 will
inherit the FIRST_CLASS map-class that is defined under the major
interface since the Serial0/0.1 subinterface does not have a map-class
bound to it and DLCI 503 does not have a map-class bound explicitly to
it. DLCI 504 under subinterface Serial0/0.2 will use the SECOND_CLASS
map-class because the
subinterface map-class supercedes the map-class configured under the
main interface. DLCI 502 will use the THIRD_CLASS map-class since it is
explicitly bound to the DLCI itself.

Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com Toll Free: 877-334-8987
Direct: 775-745-6404 (Outside the US and Canada)
Internetwork Expert, Inc.
http://www.InternetworkExpert.com

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
wwwjjang@chol.com
Sent: Thursday, August 21, 2003 11:45 PM
To: ccielab@groupstudy.com
Subject: FRTS's Question for Multipoint Sub-interfaces

Hi..Everyone..

I am trying to config a FRTS for Multipoint-Subinterface.
But I was confused by this..!!

Who knows the correct configuration help me !!!!
Thanks.

----------
Diagram
----------
R2(S0 1.1.1.2)-FR-(S1.1 P2P)-R1-(S1.2 MP)-FR-(s0 2.2.2.3)-R3
                             |
                             FR
                             |
                    R4(s0 2.2.2.4)

-R1's S1.1 is a point-to-point interface & ip address is 1.1.1.1
-R1's S1.2 is a multipoint interface & ip address is 2.2.2.1
-R1's S1.2, R3's S0 & R4's S0 is in a same-subnet.
-R1,R2,R3 & R4 are coverd with a Frame-Relay.
-R1's S 1.1 has a 18Kbps Bandwidth
-R1's S 1.2 has a 36Kbps Bandwidth

---------
Question
---------
=Configure this FRTS on R1 !!
A>the CIR for PVC conecting to R2 should be 10Kbps
B>the CIR for PVC conecting to R3 should be 20Kbps
C>the CIR for PVC conecting to R3 should be 10Kbps
D>If BECNs are received, R1 should throttle back to 50% of the CIR
configured for the PVC that BECNs were received.
E>The "Peak rate" should be 30% higher than the CIR for each pvc

-----------
My Solution
-----------

1> The FRTS-config between R1's S1.1 & R2's S0 => Is this correct ??

R1>

interface Serial1
bandwidth 64
encapsulation frame-relay
frame-relay traffic-shaping **
no frame-relay inverse-arp
frame-relay lmi-type ansi
!
interface Serial1.1 point-to-point
bandwidth 16 **
ip address 1.1.1.1 255.255.255.0
frame-relay interface-dlci 614
class FRTS-P2P
!
map-class frame-relay FRTS-P2P
frame-relay mincir 5000
frame-relay traffic-rate 10000 13000
frame-relay adaptive-shaping becn

2> The FRTS-config between R1's S1.2(MP) & R3's S0
=>Is it right ??

**> Because R1's S1.2 is a multipoint sub-interface,
We must use a FR-Map command on R1 shch as below

R1>

interface Serial1.2 multipoint
bandwidth 38
ip address 2.2.2.1 255.255.255.0
ip ospf network point-to-multipoint
frame-relay map ip 2.2.2.3 603 broadcast **
frame-relay map ip 2.2.2.4 605 broadcast **
frame-relay class FRTS-MP **
=>This FRTS also affects to the R1-R4's PVC !!!
!
map-class frame-relay FRTS-MP
frame-relay mincir 10000
frame-relay traffic-rate 20000 26000
frame-relay adaptive-shaping becn

**NOTE**

**>There is a 2-PVCs in R1's S1.2
(One is connected to R3, The other is connected to R4)
**> How can i config a FRTS for the PVC of R1-R4 ???
**> The PVC between R1-R4 is also affected by the "frame-relay class
FRTS"
(It's used for R1-R3's PVC)
=> So, 2-pvcs are affected by the "frame-relay class FRTS"-command on
samee
time
But I want to config a FRTS per PVC..
How should i do ????
Please Help me..!!



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