The MPLS-OPS Archive

[Panos Kolyvas <panos@noc.uoa.gr>]

Hi Christopher,

thanks for your answer. 

The ERX is loaded with 3-2-3p10 release. In this release the system supports :

1. DOD, ordered control
2. Downstream Unsolicited DU, independent control.

According to the manual, DOD is used if you implement a user-driven network or 
a topology driven network and configure peer LSRs to use the interface label 
space. This is the ATM case where you can assign labels per interface.

In DU, independent control is used if you implement a topology driven network 
and configure LSRs to use the platform label space (which is our Fast Ethernet 
case). 

As i recall CISCO uses DU LDP for packet-based MPLS and DOD for ATM MPLS.

So, with the new ERX software release i should not have a problem as DU is 
supported by the ERX for the Fast Ethernet interface. Propably a 
misconfiguration issue. 

>From your point of view is any problem with the CISCO configuration?

Thank you,

Panos Kolyvas 
Network Operations Center
University of Athens
Greece.


> About 6 months ago, yes. using ERX 1400 and code release 3.05 there were
> a 
> few limitations, you'd have to check with Unisphere to see if these
> issues 
> still exist. In that release the ERX only supports Downstream on Demand
> for 
> ethernet interfaces, whereas Cisco and Juniper use downstream
> unsolicited 
> label distribution.
> 
> If you move to an ATM interface, Cisco, Juniper and Unisphere support 
> downstream on demand and the Cisco/Unisphere combo should communicate.
> 
> Chris
> 
> At 09:44 AM 7/19/2002, Panos Kolyvas wrote:
> >Hi to all,
> >
> >i sent this email half an hour ago to <mailto:mpls@UU.NET>mpls@UU.NET
> and 
> >now i send it to this mailing list also.
> >
> >Has anybody tested a basic MPLS configuration (Label exchange with LDP)
> 
> >between a UNISPHERE ERX and a CISCO 3661 via Fast Ethernet
> interfaces?
> >
> >Thanks in advance,
> >
> >Panos Kolyvas
> >
> >
> >
> >----------------------------------------------------------------------------
-----------------------------
> >
> >The ERX has the following configuration:
> >
> >
> >
> >ERX1#sh conf virtual-router PE-FE
> >! Unisphere Edge Routing Switch ERX-1400
> >! Version: 3.2.3 patch-10.2 (May 23, 2002  12:01)
> >! Copyright (c) 1999-2002 Unisphere Networks, Inc.  All rights
> reserved.
> >!
> >! Configuration script generated on FRI JUL 19 2002 16:35:19 UTC
> >!
> >! NOTE:  This script represents only a subset of the full system 
> >configuration.
> >!
> >virtual-router PE-FE
> >aaa authentication ppp default radius
> >aaa accounting ppp default radius
> >!
> >ip address-pool local
> >mpls
> >!
> >mpls topology-driven-lsp ip-profile "IP-PE-FE"
> >mpls topology-driven-lsp ip-interfaces egress host-only
> >mpls topology-driven-lsp ip-interfaces ingress host-only
> >!
> >mpls rsvp interface profile default
> >!
> >mpls ldp interface profile "PE-FE"
> >  hello hold-time 10
> >  no cr-ldp
> >!
> >mpls ldp interface profile default
> >!
> >interface null 0
> >interface loopback 0
> >  ip address 4.4.4.4 255.255.255.255
> >!
> >interface pos 4/0
> >  pos framing sdh
> >  clock source internal chassis
> >  no pos scramble-atm
> >  encapsulation ppp
> >!
> >interface atm 9/0
> >  atm sonet stm-1
> >  atm clock internal chassis
> >!
> >interface atm 9/1
> >  atm sonet stm-1
> >!
> >interface atm 9/2
> >  atm sonet stm-1
> >  atm clock internal chassis
> >  atm oam 6 end-loopback
> >  atm oam 6 seg-loopback
> >!
> >interface atm 9/3
> >  atm sonet stm-1
> >  atm clock internal chassis
> >!
> >interface fastEthernet 11/0
> >  ip address 30.30.30.1 255.255.255.0
> >  ip proxy-arp
> >  mpls
> >  mpls ldp profile "PE-FE"
> >!
> >interface fastEthernet 11/1
> >!
> >no ip source-route
> >router ospf 99
> >! Area 0.0.0.0
> >  network 4.4.4.4 0.0.0.0 area 0.0.0.0
> >  network 30.30.30.0 0.0.0.255 area 0.0.0.0
> >!
> >
> >where IP-PE-FE is a profile in default virtual router:
> >
> >profile "IP-PE-FE"
> >  ip unnumbered loopback 0
> >
> >
> >The CISCO router has the following configuration:
> >
> >3662CE1#wr t
> >Building configuration...
> >
> >Current configuration : 5893 bytes
> >!
> >! Last configuration change at 13:00:28 UTC Thu Jul 18 2002 by cisco
> >! NVRAM config last updated at 13:00:30 UTC Thu Jul 18 2002 by cisco
> >!
> >version 12.2
> >service timestamps debug uptime
> >service timestamps log uptime
> >no service password-encryption
> >!
> >hostname 3662CE1
> >!
> >boot system flash c3660-js-mz.122-8.T.bin
> >boot system flash c3660-js-mz.122-7.bin
> >boot system flash c3660-p-mz.122-5a.bin
> >boot system flash c3660-is-mz.121-5.T8
> >enable password cisco
> >!
> >username cisco password 0 cisco
> >ip subnet-zero
> >!
> >!
> >no ip domain-lookup
> >!
> >!
> >ip multicast-routing
> >ip cef
> >clns routing
> >mpls traffic-eng tunnels
> >isdn switch-type basic-net3
> >isdn voice-call-failure 0
> >!
> >!
> >interface Loopback2
> >  description Kolyvas-7275610-MPLS-me-ERX-2
> >  ip address 5.5.5.5 255.255.255.255
> >!
> >interface FastEthernet0/1
> >  ip address 30.30.30.2 255.255.255.0
> >  duplex auto
> >  speed auto
> >  mpls label protocol ldp
> >  tag-switching ip
> >!
> >interface FastEthernet0/1.1
> >  description **** Link me ton 7500 gia MPLS VPN ****
> >  bandwidth 10000000
> >!
> >router ospf 3
> >  router-id 3.3.3.3
> >  log-adjacency-changes
> >  network 3.3.3.3 0.0.0.0 area 0.0.0.0
> >  network 5.5.5.5 0.0.0.0 area 0.0.0.0
> >  network 30.30.30.0 0.0.0.255 area 0.0.0.0
> >!
> >3662CE1#
> >
> >Some show commands follow:
> >
> >3662CE1#  sh ver
> >Cisco Internetwork Operating System Software
> >IOS (tm) 3600 Software (C3660-JS-M), Version 12.2(8)T,  RELEASE
> SOFTWARE (fc2)
> >TAC Support: <http://www.cisco.com/tac>http://www.cisco.com/tac
> >Copyright (c) 1986-2002 by cisco Systems, Inc.
> >Compiled Thu 14-Feb-02 11:03 by ccai
> >Image text-base: 0x60008940, data-base: 0x61880000
> >
> >ROM: System Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1)
> >ROM: 3600 Software (C3660-IS-M), Version 12.1(5)T8,  RELEASE SOFTWARE
> (fc1)
> >
> >3662CE1 uptime is 1 week, 3 days, 6 hours, 3 minutes
> >System returned to ROM by power-on
> >System restarted at 07:36:17 UTC Tue Jul 9 2002
> >System image file is "flash:c3660-js-mz.122-8.T.bin"
> >
> >cisco 3660 (R527x) processor (revision 1.0) with 253952K/8192K bytes of
> 
> >memory.
> >Processor board ID JAB052281UL
> >R527x CPU at 225Mhz, Implementation 40, Rev 10.0, 2048KB L2 Cache
> >Channelized E1, Version 1.0.
> >Bridging software.
> >X.25 software, Version 3.0.0.
> >SuperLAT software (copyright 1990 by Meridian Technology Corp).
> >TN3270 Emulation software.
> >Primary Rate ISDN software, Version 1.1.
> >Basic Rate ISDN software, Version 1.1.
> >
> >
> >3660 Chassis type: ENTERPRISE
> >2 FastEthernet/IEEE 802.3 interface(s)
> >2 Serial network interface(s)
> >2 ISDN Basic Rate interface(s)
> >2 Channelized E1/PRI port(s)
> >4 Voice TE BRI interface(s)
> >DRAM configuration is 64 bits wide with parity disabled.
> >125K bytes of non-volatile configuration memory.
> >65536K bytes of processor board System flash (Read/Write)
> >
> >3662CE1#sh mpls ldp discovery
> >  Local LDP Identifier:
> >     192.168.3.49:0
> >     Discovery Sources:
> >     Interfaces:
> >         FastEthernet0/1 (ldp): xmit/recv
> >             LDP Id: 30.30.30.1:0
> >
> > From this output it seems that the 3662 has transmitted and received
> LDP 
> > messages and also it has learned the LDP id of the ERX system.
> >
> >
> >
> >
> >The following show commands are from the Unisphere ERX:
> >
> >ERX1:PE-FE#sh mpls forwarding
> >ERX1:PE-FE#sh mpls ip binding
> >ERX1:PE-FE#sh mpls interface
> >Interface fastEthernet11/0 Up
> >  RSVP not configured
> >  LDP enabled with profile PE-FE, CR-LDP disabled
> >  IP interfaces on this MPLS interface:
> >     30.30.30.1/24
> >
> >  MPLS Statistics:
> >    Rcvd: 0 failed lbl lookup, 0 octets, 0 hcOctets
> >          0 pkts, 0 hcPkts, 0 errors, 0 discards
> >    Sent: 0 octets, 0 hcOctets, 0 pkts
> >          0 hcPkts, 0 errors, 0 discards
> >
> >
> >
> 

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