bandwidth guarantee on VPN

Have two sites connected with 4 Channelized T1's with a VPN between them controlled by two PIX's. On each side the T1's go into a 2821 router , then into the PIX, hence into a series of 2960 switches. ( see config for router below)

Client would like to guarantee bandwidth to SQL servers on one side from just some of the computers on the other.

I read in the Cisco site docs about Low Latency Queuing, Policing and Shaping, Class Based Weighted Fair Queuing (CBWFQ) - essentially all I'm finding are abstract white papers that give me no sense if they're appropriate technologies. The only really useful bit I've found was here :

formatting link
, but I see the issue hasn't yet resolved in a working config.

It occurs to me to wonder if I can associate a switch based (local) VPN with one or two of the T1's -

Any thoughts on basic strategy here, or examples of specific similar working configs would be much appreciated.

Many thanks -

Cisco 2821 (revision 53.51) with 249856K/12288K bytes of memory.

Processor board ID xxxxxxxxxxxxx

2 Gigabit Ethernet interfaces

4 Serial interfaces

4 Channelized T1/PRI ports

1 Virtual Private Network (VPN) Module

DRAM configuration is 64 bits wide with parity enabled.

239K bytes of non-volatile configuration memory.

62720K bytes of ATA CompactFlash (Read/Write)

!

boot-start-marker

boot-end-marker

!

logging buffered 51200 warnings

!

no aaa new-model

!

resource policy

!

no network-clock-participate wic 0

no network-clock-participate wic 1

ip subnet-zero

ip cef

ip domain xxxxxxxxxxxxxxxxxx

ip ssh time-out 60

!

voice-card 0

no dspfarm

controller T1 0/0/0

framing esf

linecode b8zs

channel-group 1 timeslots 1-24

!

controller T1 0/0/1

framing esf

linecode b8zs

channel-group 1 timeslots 1-24

!

controller T1 0/1/0

framing esf

linecode b8zs

channel-group 1 timeslots 1-24

!

controller T1 0/1/1

framing esf

linecode b8zs

channel-group 1 timeslots 1-24

!

interface Multilink524754

description => xxxxxxxxxxxxxxxxx

ip address xxxxxxxxxxxx 255.255.255.252

ip access-group 100 in

no ip redirects

no ip proxy-arp

load-interval 30

no cdp enable

ppp multilink

ppp multilink group 524754

ppp multilink fragment disable

!

interface GigabitEthernet0/0

ip address xxxxxxxxxxxxx 255.255.255.240

duplex auto

speed auto

!

interface GigabitEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/0/0:1

description MLPPP

no ip address

encapsulation ppp

tx-ring-limit 26

tx-queue-limit 26

no fair-queue

no cdp enable

ppp multilink

ppp multilink group 524754

!

interface Serial0/0/1:1

description MLPPP

no ip address

encapsulation ppp

tx-ring-limit 26

tx-queue-limit 26

no fair-queue

no cdp enable

ppp multilink

ppp multilink group 524754

!

interface Serial0/1/0:1

description MLPPP

no ip address

encapsulation ppp

tx-ring-limit 26

tx-queue-limit 26

no fair-queue

no cdp enable

ppp multilink

ppp multilink group 524754

!

interface Serial0/1/1:1

description MLPPP

no ip address

encapsulation ppp

tx-ring-limit 26

tx-queue-limit 26

no fair-queue

no cdp enable

ppp multilink

ppp multilink group 524754

!

ip classless

ip route 0.0.0.0 0.0.0.0 xxxxxxxxxxxxxxxxxxx

! !

ip http server

ip http authentication local

no ip http secure-server

ip http timeout-policy idle 5 life 86400 requests 10000

!

access-list 100 deny icmp any any redirect

access-list 100 deny icmp any any time-exceeded

access-list 100 deny ip xxxxxxxxxxx

access-list 100 deny ip xxxxxxxxx

access-list 100 deny ip xxxxxxxxxxx

access-list 100 deny ip xxxxxxxxxxxx

access-list 100 deny ip xxxxxxxxxxxxxxx

access-list 100 deny ip xxxxxxxxxxxx

access-list 100 deny ip host 0.0.0.0 any

access-list 100 permit ip any any

no cdp run

! ! ! !

control-plane

!
Reply to
barret bonden
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You have indicated router models and switch models, and router configurations, but you haven't mention the PIX model or PIX software version.

If you are using PIX 4/5/6 then any ToS or DSCP information that might be associated with a packet (by the switches) is going to be discarded; thus, with those versions, if you cannot get the switches to enforce the bandwidths then you will not be able to do what you want.

If you are using PIX 7 then QoS is supported over VPN (I think); It would have to be configured at the PIX level to go end-to-end. Rate controls are (if I recall correctly) supported in PIX 7.

Reply to
Walter Roberson

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