05-15-2007 01:37 AM - edited 03-03-2019 04:59 PM
hi
Why is it that we may want to configure PPP over Frame-relay,if both technologies are both layer two encapsulation techniques why do we use the two of them at the same time.For a moment i thought it is done to establish a secure connection between two end point by configuring ppp chap.
can somebody explain this.
Solved! Go to Solution.
05-15-2007 01:42 AM
Hi,
We use PPP over frame relay for various reasons, mainly to benefit from the PPP features, authentication, MPPP, LFI and more, but both end devices must support it.
Example:
interface Serial1/0.1 point-to-point
bandwidth 128
frame-relay interface-dlci 51 ppp Virtual-Template1
class FRTS
!
interface Virtual-Template1
bandwidth 128
ip address 10.10.1.2 255.255.255.252
max-reserved-bandwidth 90
ppp multilink
ppp multilink fragment delay 10
ppp multilink interleave
!
map-class frame-relay FRTS
frame-relay cir 128000
frame-relay bc 12800
frame-relay be 0
frame-relay mincir 128000
service-policy output voice
HTH, please do rate all helpful replies,
Mohammed Mahmoud.
05-15-2007 01:42 AM
Hi,
We use PPP over frame relay for various reasons, mainly to benefit from the PPP features, authentication, MPPP, LFI and more, but both end devices must support it.
Example:
interface Serial1/0.1 point-to-point
bandwidth 128
frame-relay interface-dlci 51 ppp Virtual-Template1
class FRTS
!
interface Virtual-Template1
bandwidth 128
ip address 10.10.1.2 255.255.255.252
max-reserved-bandwidth 90
ppp multilink
ppp multilink fragment delay 10
ppp multilink interleave
!
map-class frame-relay FRTS
frame-relay cir 128000
frame-relay bc 12800
frame-relay be 0
frame-relay mincir 128000
service-policy output voice
HTH, please do rate all helpful replies,
Mohammed Mahmoud.
05-15-2007 05:51 AM
hi can u give a brief descriptionof how the virtual interface works as applied to the serial interface.
05-15-2007 06:18 AM
Hi,
A virtual template interface is used to provide the configuration for dynamically created Virtual-Access interfaces. It is created by users and can be saved in nonvolatile RAM (NVRAM).
Once the virtual template interface is created, it can be configured in the same way as a serial interface.
To create a virtual template interface that can be configured and applied dynamically in creating virtual access interfaces, use the interface virtual-template command in global configuration mode.
Virtual template interfaces can be created and applied by various applications such as Virtual Profiles, virtual private dialup networks (VPDN), PPP over ATM, PPP over Frame Relay, protocol translation, and Multichassis Multilink PPP (MMP).
Following are FR and ATM examples:
interface Serial1/0.1 point-to-point
bandwidth 128
frame-relay interface-dlci 51 ppp Virtual-Template1
class FRTS
interface ATM1/0.52 point-to-point
ip vrf forwarding customer
pvc 101/52
abr 167 167
oam-pvc manage
encapsulation aal5ciscoppp virtual-Template 1
HTH, please do rate all helpful replies,
Mohammed Mahmoud.
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