11-12-2008 09:14 AM
Hello,
I have two routers R2 and R5 back to back and I am trying to create an MPLS TE tunnel between them. R2 already has one tunnel up and running to another router R1.
I think my issue is that no RSVP traffic is being sent by R2 or R5. Here is my interface config on R5 and some show commands:
R5#show run int s2/0
Building configuration...
Current configuration : 143 bytes
!
interface Serial2/0
ip address 192.168.25.5 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
end
R5#show ip int brief s2/0
Interface IP-Address OK? Method Status Protocol
Serial2/0 192.168.25.5 YES NVRAM up up
R5#show ip rsvp counters in s2/0
Serial2/0 Recv Xmit Recv Xmit
Path 0 0 Resv 0 0
PathError 0 0 ResvError 0 0
PathTear 0 0 ResvTear 0 0
ResvConfirm 0 0 ResvTearConfirm 0 0
UnknownMsg 0 0 Errors 0 0
R5#
I have mpls traffic-eng tunnels on all routers and interfaces. Here here is my tunnel config on R5 towards R2:
R5#show run int tun 2
Building configuration...
Current configuration : 174 bytes
!
interface Tunnel2
ip unnumbered Loopback0
tag-switching ip
tunnel destination 10.0.0.2
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng path-option 1 dynamic
end
I also am learning all addresses via OSPF so R5 does have a route (and can ping) 10.0.0.2 (R2's loopback)
Any ideas where this is failing? Why isn't RSVP sending packets?
Thanks,
Solved! Go to Solution.
11-12-2008 11:41 AM
Bryan,
Please enable "ip cef" on R5 and everything should start working.
Regards
11-12-2008 09:37 AM
Hello Bryan,
interface Tunnel2
ip unnumbered Loopback0
>>tag-switching ip
this doesn't look like correct you need to put mpls traffic-engineering commands
look at this example
you need
tunnel mode mpls traffic-eng
try to remove
tag-switching ip
and each router has to declare its loopback as its mpls traffic-eng router-id inside the OSPF process
Hope to help
Giuseppe
11-12-2008 09:53 AM
Thank you Guiseppe. I have removed that command and I already do have the tunnel mode set to traffic-eng as you can see in my previous post. Also, in my ospf config I have:
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
Thanks for your reply...I am totally stimped on this.
11-12-2008 10:04 AM
Can you post the output of "show mpls traff tunn tunn2".
Regards
11-12-2008 10:10 AM
Sure.
R5#show mpls traffic-eng tunnels tunnel 2
Name: R5_t2 (Tunnel2) Destination: 10.0.0.2
Status:
Admin: up Oper: down Path: not valid Signalling: Down
path option 1, type dynamic
Config Parameters:
Bandwidth: 0 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: disabled LockDown: disabled Loadshare: 0 bw-based
auto-bw: disabled(0/200) 0 Bandwidth Requested: 0
Shortest Unconstrained Path Info:
Path Weight: UNKNOWN
Explicit Route: UNKNOWN
History:
Tunnel:
Time since created: 1 minutes, 41 seconds
Path Option 1:
Last Error: PCALC:: No path to destination, 10.0.0.2
R5#
But R5 does have a path to 10.0.0.2:
R5#ping 10.0.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/33/36 ms
R5#
In fact, R5 even has the opaque-lsa for 10.0.0.2:
R5#show ip ospf database opaque-area adv-router 10.0.0.2
OSPF Router with ID (10.0.0.5) (Process ID 1)
Type-10 Opaque Link Area Link States (Area 0)
LS age: 184
Options: (No TOS-capability, DC)
LS Type: Opaque Area Link
Link State ID: 1.0.0.0
Opaque Type: 1
Opaque ID: 0
Advertising Router: 10.0.0.2
LS Seq Number: 80000001
Checksum: 0x46F1
Length: 132
Fragment number : 0
MPLS TE router ID : 10.0.0.2
Link connected to Point-to-Point network
Link ID : 10.0.0.1
Interface Address : 192.168.12.2
Neighbor Address : 192.168.12.1
Admin Metric : 64
Maximum bandwidth : 193000
Maximum reservable bandwidth : 187500
Number of Priority : 8
Priority 0 : 187500 Priority 1 : 187500
Priority 2 : 187500 Priority 3 : 187500
Priority 4 : 187500 Priority 5 : 187500
Priority 6 : 187500 Priority 7 : 187500
Affinity Bit : 0x0
Number of Links : 1
LS age: 182
Options: (No TOS-capability, DC)
LS Type: Opaque Area Link
Link State ID: 1.0.0.1
Opaque Type: 1
Opaque ID: 1
Advertising Router: 10.0.0.2
LS Seq Number: 80000001
Checksum: 0xFEB
Length: 124
Fragment number : 1
Link connected to Point-to-Point network
Link ID : 10.0.0.5
Interface Address : 192.168.25.2
Neighbor Address : 192.168.25.5
Admin Metric : 5
Maximum bandwidth : 2500000
Maximum reservable bandwidth : 125000
Number of Priority : 8
Priority 0 : 125000 Priority 1 : 125000
Priority 2 : 125000 Priority 3 : 125000
Priority 4 : 125000 Priority 5 : 125000
Priority 6 : 125000 Priority 7 : 125000
Affinity Bit : 0x0
Number of Links : 1
R5#
192.168.12.x is the net between R1 and R2 (there is a tunnel there and it is up/up.
192.168.25.x is between R2 and R5.
thanks,
11-12-2008 10:46 AM
Can you post the config for R2 and R5.
Regards
11-12-2008 10:52 AM
Here you go. I have made some changes since then but nothing major. Just adding interfaces under the OSPF MPLS traffic-eng to see if that will work. Also, there is a couple tunnels you see that I have not started to work on yet. Tunnel 5 on R2 points to R5. Tunnel 2 on R5 points to R2.
=====================================
R2:
R2# show run
Building configuration...
Current configuration : 1965 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
logging buffered 16384 debugging
!
!
!
ip subnet-zero
ip cef
!
!
no ip domain-lookup
!
mpls label protocol ldp
mpls traffic-eng tunnels
tag-switching tdp router-id Loopback0
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 10.0.0.2 255.255.255.255
!
interface Tunnel1
ip unnumbered Loopback0
tunnel destination 10.0.0.1
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng path-option 1 dynamic
!
interface Tunnel3
ip unnumbered Loopback0
tag-switching ip
tunnel destination 10.0.0.3
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng path-option 1 dynamic
!
interface Tunnel5
ip unnumbered Loopback0
tunnel destination 10.0.0.5
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng path-option 1 dynamic
!
interface FastEthernet1/0
ip address 205.127.233.242 255.255.254.0
speed 100
full-duplex
!
interface Serial2/0
ip address 192.168.12.2 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 37
ip rsvp bandwidth 1500 1500
!
interface Serial2/1
bandwidth 20000
ip address 192.168.25.2 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 37
ip rsvp bandwidth 1000 1000
!
interface Serial2/2
no ip address
shutdown
!
interface Serial2/3
no ip address
shutdown
!
router ospf 1
router-id 10.0.0.2
log-adjacency-changes
network 10.0.0.2 0.0.0.0 area 0
network 192.168.12.0 0.0.0.255 area 0
network 192.168.23.0 0.0.0.255 area 0
network 192.168.25.0 0.0.0.255 area 0
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
mpls traffic-eng interface Serial2/0 area 0
mpls traffic-eng interface Serial2/1 area 0
mpls traffic-eng interface Loopback0 area 0
!
ip classless
ip http server
ip pim bidir-enable
!
!
!
call rsvp-sync
!
!
mgcp profile default
!
dial-peer cor custom
!
!
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
login
!
!
end
R2#
====================================
R5:
R5#show run
Building configuration...
Current configuration : 1492 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R5
!
logging buffered 16384 debugging
!
!
!
ip subnet-zero
!
!
no ip domain-lookup
!
mpls label protocol ldp
mpls traffic-eng tunnels
tag-switching tdp router-id Loopback0
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 10.0.0.5 255.255.255.255
!
interface Tunnel2
ip unnumbered Loopback0
tunnel destination 10.0.0.2
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng path-option 1 dynamic
!
interface Serial2/0
ip address 192.168.25.5 255.255.255.0
mpls traffic-eng tunnels
fair-queue 64 256 32
ip rsvp bandwidth 1000 1000
!
interface Serial2/1
ip address 192.168.45.5 255.255.255.0
shutdown
mpls traffic-eng tunnels
fair-queue 64 256 37
ip rsvp bandwidth 1000 1000
!
interface Serial2/2
no ip address
shutdown
fair-queue 64 256 37
ip rsvp bandwidth 10000 10000
!
interface Serial2/3
no ip address
shutdown
!
router ospf 1
router-id 10.0.0.5
log-adjacency-changes
network 10.0.0.5 0.0.0.0 area 0
network 192.168.25.0 0.0.0.255 area 0
network 192.168.45.0 0.0.0.255 area 0
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
mpls traffic-eng interface Serial2/0 area 0
mpls traffic-eng interface Loopback0 area 0
!
ip classless
ip http server
ip pim bidir-enable
!
!
!
call rsvp-sync
!
!
mgcp profile default
!
dial-peer cor custom
!
!
!
!
!
!
end
R5#
======================================
thanks
11-12-2008 11:41 AM
Bryan,
Please enable "ip cef" on R5 and everything should start working.
Regards
11-12-2008 11:51 AM
OH MAN,
Thank you Harold!!!!
12-11-2008 03:49 PM
hello my freind i dont know that much about TE but in ur tunnel interface commands u have nt put auto route announce command---> tunnel mpls traffic-eng autoroute announce
interface Tunnel1
ip unnumbered Loopback1
tunnel destination 192.168.1.3
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng autoroute announce (this above command is very important)
tunnel mpls traffic-eng priority 1 1
tunnel mpls traffic-eng bandwidth 300
tunnel mpls traffic-eng path-option 10 dynamic
!
cus ur data cant route if it doesnt know the route. might be it can problem--
static
policy base
auto route
12-12-2008 08:32 AM
Tarj,
Autoroute announce is not the only way to push traffic through the tunnel. You can also use a static route pointing with the tunnel as the next hop interface or use PBR to set the tunnel as the next hop interface.
Regards
12-15-2008 01:54 PM
yea m8 ur right i know that but if u look in that guy router's sh run configuration he has not mention any autoroute or static route or even PBR in his configuration. in 12 nov post b dodger sh run.
12-15-2008 01:57 PM
(Here you go. I have made some changes since 12 nov)check that one post above there is full router SH Run n u cant find autoroute or static route command in tunnels. so i thought might be thats problem
Regards
12-15-2008 02:18 PM
Tarj,
This thread has been solved on Nov 12th. "ip cef" was missing from the config.
Regards
12-15-2008 03:40 PM
thanks m8 i have one problem now m tryin to use mpls auto bandwidth adjustment command but problem is when i put two commands togather one disappear from list
1. tunnel mpls traffic-eng auto-bw frequency 600
2. tunnel mpls traffic-eng auto-bw max-bw 60 min-bw 30
why according to cisco lab i can put two commands togather if i remove one then other one comes up. but problem is i want to decrease the time of readjust ment by default it is 24 hour 86400 sec. i put 300 sec n set bandwidth min max they both r oppsite. m using 3660 router on dayangen.
configuration
----------------------------
interface Tunnel1
ip unnumbered Loopback9
tunnel destination 192.168.1.5
tunnel mode mpls traffic-eng
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng priority 1 1
tunnel mpls traffic-eng bandwidth 50
tunnel mpls traffic-eng path-option 10 dynamic
tunnel mpls traffic-eng auto-bw max-bw 60 min-bw 30
no routing dynamic
end
plz reply soon
i put both commands it appear togather in configuration sh run. but when frequency time 300 finish then bandwidth become 0 cus m using danagen so there is no traffic load. but it should stay to min bandwidth.
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