ASR901 error "pstorm_bcm_prog_label"

[j2cs_1977]

I have a trouble with ASR901,

I have many vrfs work normally, then appears many logs in my console and vrfs stop working.

Somebody knows how to fix this trouble?

Sep 16 10:02:54.773:  pstorm_bcm_prog_label:1227: l3_egress_create failed. Label: 1775. Err: [0xFFFFFFF2]. l3_egr_id 103758, gport 0x0800280B, l3intf 118, bcm_flag 0x00000000, l3_egress.flags 0x00000000

Sep 16 10:02:54.773:  pstorm_compare_and_prog_label_in_bcm:1941: pstorm_bcm_prog_label failed for label= 1775

Sep 16 10:02:54.781:  pstorm_bcm_prog_label:1227: l3_egress_create failed. Label: 1889. Err: [0xFFFFFFF2]. l3_egr_id 103758, gport 0x0800280B, l3intf 118, bcm_flag 0x00000000, l3_egress.flags 0x00000000

Sep 16 10:02:54.781:  pstorm_compare_and_prog_label_in_bcm:1941: pstorm_bcm_prog_label failed for label= 1889

[Dmytro Skotnikov]

Hello Juan,

Would you be so kind to provide "show version" output. It's most likely you are hitting a scale limit on the box due to a large amount of labels allocated for MPLS services.

You can check when the first messages appeared and correlate to amount of MPLS service deployed on the box prior that time.

Thank you

-- 
Best regards,
Dmitry Skotnikov

[j2cs_1977]

Actually I have configured 16 vrfs....

"show version"

Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.3(2)S2, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2013 by Cisco Systems, Inc.

Compiled Mon 12-Aug-13 05:10 by prod_rel_team

ROM: System Bootstrap, Version 15.2(2r)SNI, RELEASE SOFTWARE (fc1)

PNETMECMTZPE01 uptime is 22 hours, 6 minutes

System returned to ROM by reload at 11:18:38 UTC Sun Sep 15 2013

System restarted at 11:56:59 UTC Sun Sep 15 2013

System image file is "flash:asr901-universalk9-mz.153-2.S2.bin"

Last reload reason: reload

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to

export@cisco.com.

License Level: AdvancedMetroIPAccess

License Type: Permanent

Next reload license Level: AdvancedMetroIPAccess

Cisco A901-12C-F-D (P2020) processor (revision 1.0) with 393216K/131072K bytes of memory.

Processor board ID CAT1652U00T

P2020 CPU at 800MHz, E500v2 core, 512KB L2 Cache

1 FastEthernet interface

12 Gigabit Ethernet interfaces

1 terminal line

256K bytes of non-volatile configuration memory.

98304K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

"show mpls bindings summary"

SH MPLs LDp BIndings SUmmary

Total number of prefixes: 102

Generic label bindings

                      assigned        learned

       prefixes      in labels     out labels

            102            102            204

Total tib route info allocated: 102

[Mohammed Imran Khan]

Hello Juan,

was this box running on 153-2.S2 when the issue happened. Are you still facing the issue after reload?

/Imran

[j2cs_1977]

Yes, This router was running 153-2.S2 with License "AdvancedMetroIPAccess" and after reload yet still the problem.

do you know where can I find commands for check this trouble? o What Can I do?

[Mohammed Imran Khan]

Hello Juan,

Can you please paste the output of following:

show ip bgp vpnv4 all summary

show ip bgp vpnv4 all label

and the output of "show run | b router bgp"

/Imran

[j2cs_1977]

[Dmytro Skotnikov]

Hello Juan,

Would you be so kind to capture the following outputs:

! Configure "service internal"

(conf)# service internal

# show platform hardware cef hw-resource

We need to calculate the overall label allocation on the box in order to understand did we cross the scale limit on this router.

-- 
Best regards,
Dmitry Skotnikov

[j2cs_1977]

No of IPv6 Route Entries : 0

No of IPv6 Host Entries  : 0

No of IPv4 Defip Entries : 4339

No of Outgoing Labels    : 3868

No of In-Labels(Label Entries): 354

No of Label Replace(operations): 127

No of l3intf Replace(operations): 0

[Dmytro Skotnikov · Accepted solution]

Hello Juan,

I can see you are very close to label scale limit, for ASR901 platform there is a limit of 4000 hw switched labels. I would suggest you to decrease the amount of prefixes on this box. You can evalute any possible way to do so, summarization, filtering etc.

Thank you

-- 
Best regards,
Dmitry Skotnikov

[j2cs_1977]

thks...

Actually, I applied your suggestions.. ... It works

[budilasmono]

Hi Dmitry,

the 4000 hw switched label limitation on the ASR901, is it applies only on MPLS L3VPN ?

or is it shared with EoMPLS ?

Thanks,

Budi L