01-07-2013 03:12 AM - edited 03-04-2019 06:36 PM
Dear All,
Can somebody please explain what is the meaning of the following log messages on Cisco 7604 Core routers. The Core router is configured with 2 STM card configurations with Vlan assignments:
7604#show ver
Cisco IOS Software, c7600s72033_rp Software (c7600s72033_rp-ADVIPSERVICESK9-M), Version 12.2(33)SRD4, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Mon 22-Feb-10 04:32 by prod_rel_team
cisco CISCO7604 (R7000) processor (revision 2.0) with 458720K/65536K bytes of memory.
Processor board ID FOX1428GZND
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from power-on
1 SIP-200 controller (8 FastEthernet)(2 Channelized OC3/STM-1).
1 SSC-400 controller (1 IPSEC).
181 Virtual Ethernet interfaces
8 FastEthernet interfaces
4 Gigabit Ethernet interfaces
393 Serial interfaces
2 Channelized STM-1 ports
1917K bytes of non-volatile configuration memory.
8192K bytes of packet buffer memory.
65536K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x2102
Sample Configuration of STM Card:
NBP-LHR-HO-1#show run int Serial2/0/0.1/3/7/1:2
Building configuration...
Current configuration : 148 bytes
!
interface Serial2/0/0.1/3/7/1:2
description------
ip unnumbered Null0
encapsulation ppp
crypto connect vlan 296
end
NBP-LHR-HO-1#show run int vlan 296
Building configuration...
Current configuration : 274 bytes
!
interface Vlan296
description ============ Serial2/0/0.1/3/7/1:2
ip address x.x.x.x y.y.y.y
ip ospf message-digest-key 1 md5 7 02470A591B0D0A381D1C5A
ip ospf network point-to-point
ip ospf cost 1
crypto engine slot 3/0
I am getting the following Log messages and unable to find anything about them over the internet
998856: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 198
998857: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 200
998858: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 201
998859: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 202
998860: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 203
998861: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 204
998862: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 205
998863: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 206
998864: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 207
998865: Jan 7 16:04:40.671 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 208
998866: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 211
998867: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 212
998868: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 213
998869: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 214
998870: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 215
998871: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 216
998872: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 217
998873: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 218
998874: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 219
998875: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 220
998876: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 221
998877: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 222
998878: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 223
998879: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 225
998880: Jan 7 16:04:40.675 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 226
998881: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 228
998882: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 229
998883: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 230
998884: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 231
998885: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 232
998886: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 233
998887: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 240
998888: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 241
998889: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 242
998890: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 244
998891: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 245
998892: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 246
998893: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 247
998894: Jan 7 16:04:40.679 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 249
998895: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 250
998896: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 251
998897: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 252
998898: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 253
998899: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 254
998900: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 255
998901: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 256
998902: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 258
998903: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 259
998904: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 260
998905: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 261
998906: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 262
998907: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 263
998908: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 264
998909: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 266
998910: Jan 7 16:04:40.683 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 267
998911: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 268
998912: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 269
998913: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 271
998914: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 272
998915: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 273
998916: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 275
998917: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 276
998918: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 277
998919: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 280
998920: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 281
998921: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 282
998922: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 284
998923: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 285
998924: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 286
998925: Jan 7 16:04:40.687 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 288
998926: Jan 7 16:04:40.691 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 291
998927: Jan 7 16:04:40.691 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 292
998928: Jan 7 16:04:40.691 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 293
998929: Jan 7 16:04:40.691 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 294
998930: Jan 7 16:04:40.691 GMT: macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan = 296
An urgent response would be much appreciated
01-07-2013 03:24 AM
Hi,
This symptoms are matching bug "CSCsy00924 Log Message macedon_cwan_rewrite_adj: Changing interface to P2P!, ifvlan".
The problem appears to be related to having an SVI configured on a vlan configured on 'crypto engine slot'. There is no discernable impact to customer traffic, but the message may fill the log buffers by generating many messages per second on a one minute cycle. The workaround is to remove the IP Address from the reported vlan.
The CSCsy00924 is fixed in SRE releases and later.
Kind Regards,
Ivan Shirshin
**Please grade this post if you find it useful.
01-07-2013 03:40 AM
Dear Ivan
Thanks for the great reply. Our other Core router is working on the similar configuration but I havent seen these log messages on that router.Is there any way to turn off these logs as they will fill out the log buffers. Also I dont understand the workaround "The workaround is to remove the IP Address from the reported vlan" . Our Core Routers are configured like the way I pasted above and Removal of IP address from VLAN will not serve the purpose.
01-08-2013 08:37 AM
Hi,
There are several conditions for this bug to be triggered, maybe on other routers not all of them are hit (e.g. some may not use crypto functionality).
About workaround - if you configure 'no ip address' for problem vlan, the message stops in relation to that vlan. Since removal of IP is not possible, suppressing messages can be done either by disabling logging completely or by fixing the issue with the IOS upgrade.
Kind Regards,
Ivan Shirshin
**Please grade this post if you find it useful.
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