[c-nsp] RE: ATM pvp, vpi, pvp

[kostas anagnopoulos]

Hi Kim,

What is the difference between
1) tag-switching atm vpi 240-255
establishes a vpi range with a directly connected BPX. LVCs will be from the
240 to 255 vp range.
2) tag-switching atm vp-tunnel 6 vci-range 33-65518
creates a vp between tag-enabled equipment through a native atm backbone.
LVCs will use the specified vc range from vp 6
3) atm pvp 3 33000
creates an atm vp under a main interface. It is used for tag or vp switching
on catalyst atm switches
and for l2-local-switching or l2vpns (AToM) on cisco routers

check also
http://www.cisco.com/en/US/customer/tech/tk39/tk797/technologies_tech_note09
186a00800d79b3.shtml

http://www.cisco.com/en/US/customer/tech/tk436/tk798/technologies_configurat
ion_example09186a0080093d4f.shtml

http://www.cisco.com/en/US/customer/tech/tk436/tk798/technologies_configurat
ion_example09186a008009456f.shtml

http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps1829/products_fea
ture_guide09186a00801ea88d.html

Regards,
Kostas


  -----Original Message-----
  From: Kim Onnel [mailto:karim.adel at gmail.com]
  Sent: Monday, February 27, 2006 10:23 AM
  To: Cisco List 2 (E-mail)
  Cc: kostas anagnopoulos
  Subject: ATM pvp, vpi, pvp


  Hello,

  For ATM gurus who once operated cell-mode mpls networks:


  MGX(RPM)1==== BPX+LSC=====MGX(RPM)2
                                 ||
                                 ||
                         MGX(RPM)3

  The configuration for the XtagATM1 interface on the LSC for RPM1: (P)

  interface XTagATM383
   description *** LSC to RPM1***
   bandwidth 33000
   ip unnumbered Loopback0
   ip ospf hello-interval 5
   ip ospf dead-interval 15
   extended-port ATM1/0 bpx 3.8.3
   tag-switching atm cos available 0
   tag-switching atm cos control 0
   tag-switching atm vp-tunnel 3 vci-range 33-65535
   tag-switching ip


  And on the RPM1 (PE)


  interface Switch1  : equiv. to ATM1
   no ip address
   no ip mroute-cache
   atm pvp 3 33000
   atm pvp 29 2048
   no atm ilmi-keepalive
   no rpm-sar-auto-recovery
   rpm-auto-cbclk-change
  !
  interface Switch1.1 tag-switching
   bandwidth 33000
   ip unnumbered Loopback0
   ip ospf hello-interval 5
   ip ospf dead-interval 15
   tag-switching atm vp-tunnel 3 vci-range 33-65535
   tag-switching ip
  !



  On LSC for RPM2:

  interface XTagATM166
   description *****LSC to  RPM2*****
   bandwidth 8000
   ip unnumbered Loopback0
   ip ospf hello-interval 5
   ip ospf dead-interval 15
   extended-port ATM1/0 bpx 1.6.6
   tag-switching atm vp-tunnel 6 vci-range 33-65535
   tag-switching ip



  and on RPM2:

  interface Switch1
   no ip address
   no ip mroute-cache
   atm pvp 6 8000
   atm pvp 18 1024
   no atm ilmi-keepalive
   rpm-auto-cbclk-change
  !
  interface Switch1.1 tag-switching
   bandwidth 8000
   ip unnumbered Loopback0
   ip accounting output-packets
   ip ospf hello-interval 5
   ip ospf dead-interval 15
   tag-switching atm multi-vc
   tag-switching atm vp-tunnel 6 vci-range 33-65518
   tag-switching ip


  On RPM3:

  (config)#interface ATM3/0
  (config-if)# no ip address

  (config-if)#interface ATM3/0.1 tag-switching
  (config-subif)# tag-switching atm vpi 240-255
  (config-subif)# tag-switching ip


  What is the difference between

  1) tag-switching atm vpi 240-255
  2) tag-switching atm vp-tunnel 6 vci-range 33-65518
  3) atm pvp 3 33000



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