[j-nsp] Problem with local interface switching
"Krasimir Avramski"
krasi at smartcom.bg
Mon Mar 12 06:50:24 EST 2007
Hi,
Do you enable the PE1 interfaces under "protocol mpls" .....
Krasi
---Original Message--------------
------------------------------------------------------------------------
---Original Message----------------------------------
FROM: angel.bardarov at btc-net.bg
TO: juniper-nsp at puck.nether.net
SUBJECT: Re: [j-nsp] Problem with local interface switching
SENT: MARCH 12, 2007 12:34PM
--------------------------------------------------------
> Hi,
> I have forwarding problem with frame relay PVCs. I need to do local
> switching between 2 FR PVCs. The configurations seem to be correct and
> everything is "up" but no actual traffic is switched. I tried with Junos
> versions 7.4R2.6 and 8.1R1.5.The topology is:
>
> |CE1(edge-a1)|---------|PE1(edge-a1)|------------|CE2(edge-a2)|
> e1-2/0/1.20-------e1-2/0/0.20|ds-2/0/4.20--------ds-2/0/4.20
> 192.168.30.2/24------------ccc-------------------192.168.30.1/30
>
> And the configurations:
> CE2:
>
> lab at edge-a2-RE0# show interfaces ds-2/0/4:1
> dce;
> encapsulation flexible-frame-relay;
> lmi {
> lmi-type ansi;
> }
> unit 20 {
> point-to-point;
> dlci 20;
> family inet {
> address 192.168.30.1/24;
> }
> }
>
> CE1:
>
> lab at edge-a1-RE0# show interfaces e1-2/0/1
> description FR_PAC1;
> dce;
> encapsulation flexible-frame-relay;
> lmi {
> lmi-type itu;
> }
> unit 20 {
> dlci 20;
> family inet {
> address 192.168.30.2/24;
> }
> }
>
> PE1:
>
> lab at edge-a1-RE0# show interfaces e1-2/0/0
> description FR_to_PAC1;
> encapsulation flexible-frame-relay;
> lmi {
> lmi-type itu;
> }
> unit 20 {
> encapsulation frame-relay-ccc;
> point-to-point;
> dlci 20;
> }
>
> lab at edge-a1-RE0> show interfaces ds-2/0/4:1
> encapsulation flexible-frame-relay;
> lmi {
> lmi-type ansi;
> }
> unit 20 {
> encapsulation frame-relay-ccc;
> point-to-point;
> dlci 20;
> }
>
>
> I configured first the local switching as l2circuit:
>
> lab at edge-a1-RE0> show configuration protocols l2circuit local-switching
> interface e1-2/0/0.20 {
> end-interface {
> interface ds-2/0/4:1.20;
> }
> }
>
> lab at edge-a1-RE0> show l2circuit connections interface e1-2/0/0.20 extensive
> Layer-2 Circuit Connections:
>
> Legend for connection status (St)
> EI -- encapsulation invalid NP -- interface h/w not present
> MM -- mtu mismatch Dn -- down
> EM -- encapsulation mismatch VC-Dn -- Virtual circuit Down
> CM -- control-word mismatch Up -- operational
> VM -- vlan id mismatch CF -- Call admission control failure
> OL -- no outgoing label XX -- unknown
> NC -- intf encaps not CCC/TCC
> CB -- rcvd cell-bundle size bad
>
> Legend for interface status
> Up -- operational
> Dn -- down
> Local Switch e1-2/0/0.20
> Interface Type St Time last up # Up trans
> e1-2/0/0.20(vc 0) _* loc Up*_ Mar 12 12:02:49
> 2007 1
> Local interface: e1-2/0/0.20, _*Status: Up*_, Encapsulation: FRAME
> RELAY
> Local interface: ds-2/0/4:1.20, _*Status: Up*_, Encapsulation:
> FRAME RELAY
> Time Event Interface/Lbl/PE
> Mar 12 12:02:49 2007 status update timer
> Mar 12 12:02:49 2007 status update timer
> Mar 12 12:02:48 2007 rmt intf up ds-2/0/4:1.20
> Mar 12 12:02:48 2007 loc intf up e1-2/0/0.20
> Mar 12 12:02:47 2007 rmt intf up e1-2/0/0.20
> Mar 12 12:02:47 2007 loc intf up ds-2/0/4:1.20
>
> I have pings running from CE1 to CE2 and viceversa, the interfaces that
> are part of local switch have input traffic but don't have output:
>
> lab at edge-a1-RE0> show interfaces ds-2/0/4:1.20
> Logical interface ds-2/0/4:1.20 (Index 131) (SNMP ifIndex 151)
> Flags: Point-To-Point SNMP-Traps Encapsulation: FR-CCC
> Input packets : 225
> Output packets: 0
> Protocol ccc, MTU: 1504
> Flags: None
> DLCI 20
> Flags: Active, DCE-Configured
> Total down time: 0 sec, Last down: Never
> _*Input packets : 225 *_
> _*Output packets: 0
> *_
> lab at edge-a1-RE0> show interfaces e1-2/0/0.20
> Logical interface e1-2/0/0.20 (Index 123) (SNMP ifIndex 134)
> Flags: Point-To-Point SNMP-Traps Encapsulation: FR-CCC
> Bandwidth: 1984kbps
> Input packets : 86
> Output packets: 0
> Protocol ccc, MTU: 1504
> Flags: None
> DLCI 20
> Flags: Active, DCE-Configured
> Total down time: 0 sec, Last down: Never
> _* Input packets : 86 *_
> _* Output packets: 0*_
>
> I configured traceoptions with flag "all":
> lab at edge-a1-RE0# run show log fr.txt
> Mar 12 12:15:10 edge-a1-RE0 clear-log[4510]: logfile cleared
> Mar 12 12:15:17.246187 intf e1-2/0/0.20 (local switching), updated
> from configuration
> Mar 12 12:15:17.246334 intf ds-2/0/4:1.20 (local switching), updated
> from configuration
> Mar 12 12:15:17.457040 vc_iflchange intf ds-2/0/4:1.20
> Mar 12 12:15:17.457155 vc_iflchange intf e1-2/0/0.20
> Mar 12 12:15:17.459531 vc_ifachange : Triggering VC status update timer
> for intf e1-2/0/0.20
> Mar 12 12:15:17.459549 Triggering VC status update timer for intf
> e1-2/0/0.20
> Mar 12 12:15:17.459574 vc_ifachange: vc (Neighbor : local, VC-ID : 0),
> ifl e1-2/0/0.20: status intf Up -> intf Up
> Mar 12 12:15:17.459805 vc_ifachange : Triggering VC status update timer
> for intf ds-2/0/4:1.20
> Mar 12 12:15:17.459811 Triggering VC status update timer for intf
> ds-2/0/4:1.20
> Mar 12 12:15:17.459820 vc_ifachange: vc (Neighbor : local, VC-ID : 0),
> ifl ds-2/0/4:1.20: status intf Up -> intf Up
> Mar 12 12:15:17.517984 Recomputing the status of the VC for interface :
> e1-2/0/0.20
> Mar 12 12:15:17.518032 Recomputing the status of the VC for interface :
> ds-2/0/4:1.20
>
> I tried with following configuration but again no success:
>
> lab at edge-a1-RE0# show protocols connections
> interface-switch fr {
> interface e1-2/0/0.20;
> interface ds-2/0/4:1.20;
> }
>
> Does anybody have any clue what may be the problem? Is it a bug or I'm
> missing something?
>
> /Best regards,
> Angel Bardarov
> Senior Specialist
> Backbone Networks
> Fixed Networks Architecture and Engineering Department
> Bulgarian Telecommunications Company Plc.
> Gurko 4 St., Sofia 1000, Bulgaria
> //+ 359 2 9320823/
>
>
>
>
>
>
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