Opóźnienia catalyst 4507

[lukis]

Witajcie,

mam problem z wg mnie dziwnymi opóźnieniami do catalysta 4507. Opóźnienie wygląda jak w poniższym obrazku:



Chciałem to skorelować z procesami na przełączniku ale nic szczególnego nie widać:

Kod: Zaznacz cały

CPU utilization for five seconds: 37%/1%; one minute: 41%; five minutes: 41%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
   1           4       345         11  0.00%  0.00%  0.00%   0 Chunk Manager
   2      226772   4998668         45  0.00%  0.00%  0.00%   0 Load Meter
   3        8120      4221       1923  0.00%  0.00%  0.00%   0 SpanTree Helper
   4           0         1          0  0.00%  0.00%  0.00%   0 Deferred Events
   5    43272436   4284293      10100  0.00%  0.13%  0.15%   0 Check heaps
   6        1268      4149        305  0.00%  0.00%  0.00%   0 Pool Manager
   7           0         2          0  0.00%  0.00%  0.00%   0 Timers
   8           0         2          0  0.00%  0.00%  0.00%   0 Serial Backgroun
   9           0         1          0  0.00%  0.00%  0.00%   0 AAA_SERVER_DEADT
  10           0         2          0  0.00%  0.00%  0.00%   0 AAA high-capacit
  11           0         1          0  0.00%  0.00%  0.00%   0 Policy Manager
  12        1600    418116          3  0.00%  0.00%  0.00%   0 IPC Dynamic Cach
  13           0         1          0  0.00%  0.00%  0.00%   0 IPC Zone Manager
  14      221572  24961616          8  0.00%  0.00%  0.00%   0 IPC Periodic Tim
  15      202904  24961616          8  0.00%  0.00%  0.00%   0 IPC Deferred Por
  16      216060   2790585         77  0.00%  0.00%  0.00%   0 IPC Seat Manager
  17           0         1          0  0.00%  0.00%  0.00%   0 IFS Agent Manage
  18   430016532 619310060        694  1.90%  2.09%  2.10%   0 ARP Input
  19          80        16       5000  0.00%  0.00%  0.00%   0 Entity MIB API
  20           0         1          0  0.00%  0.00%  0.00%   0 SERIAL A'detect
  21      304484  24961615         12  0.00%  0.00%  0.00%   0 Dynamic ARP Insp
  22      838784   6143086        136  0.00%  0.00%  0.00%   0 HC Counter Timer
  23           0         1          0  0.00%  0.00%  0.00%   0 Critical Bkgnd
  24     1838060   9350210        196  0.00%  0.00%  0.00%   0 Net Background
  25       44036    516229         85  0.00%  0.00%  0.00%   0 Logger
  26      342328  24961591         13  0.00%  0.00%  0.00%   0 TTY Background
  27     1772892  26727825         66  0.00%  0.00%  0.00%   0 Per-Second Jobs
  28    11810332    763865      15461  0.00%  0.02%  0.00%   0 Per-minute Jobs
  29  28869751001293273092       2232 12.76% 14.38% 14.07%   0 Cat4k Mgmt HiPri
  30  17790011722524682300        704  5.31%  7.19%  7.34%   0 Cat4k Mgmt LoPri
  31      568936  35352565         16  0.00%  0.00%  0.00%   0 Galios Reschedul
  32          68      1558         43  0.00%  0.00%  0.00%   0 IOS ACL Helper
  33           0         2          0  0.00%  0.00%  0.00%   0 NAM Manager
  34      336852   5566222         60  0.00%  0.00%  0.00%   0 rf task
  35          52        26       2000  0.00%  0.00%  0.00%   0 GalRedMsgProc
  36           0         1          0  0.00%  0.00%  0.00%   0 RTTYS Process
  37      437628  24962463         17  0.00%  0.00%  0.00%   0 RedStateMonitor
  38      510664  14042712         36  0.00%  0.00%  0.00%   0 Net Input
  39          76      3620         20  0.00%  0.00%  0.00%   0 BACK CHECK
  40    13174172  13993537        941  0.07%  0.07%  0.07%   0 Compute load avg
  41         164      2570         63  0.00%  0.00%  0.00%   0 chkpt message ha
  42           0         2          0  0.00%  0.00%  0.00%   0 cpf_process_msg_
  43       16200     57473        281  0.00%  0.00%  0.00%   0 cpf_process_ipcQ
  44           0       843          0  0.00%  0.00%  0.00%   0 AggMgr Process
  45           0         1          0  0.00%  0.00%  0.00%   0 SFF8472
  46           8         7       1142  0.00%  0.00%  0.00%   0 Collection proce
  47           0         3          0  0.00%  0.00%  0.00%   0 CEF switching ba
  48           0         2          0  0.00%  0.00%  0.00%   0 AAA Dictionary R
  49           0         2          0  0.00%  0.00%  0.00%   0 AAA Server
  50           0         1          0  0.00%  0.00%  0.00%   0 AAA ACCT Proc
  51           0         1          0  0.00%  0.00%  0.00%   0 ACCT Periodic Pr
  52  3029366188 915272177       3309 14.03% 13.77% 13.78%   0 Spanning Tree
  53     7463184  94788328         78  0.07%  0.04%  0.05%   0 DTP Protocol
  54       49400   2500346         19  0.00%  0.00%  0.00%   0 Ethchnl
  55     1126688  25105451         44  0.07%  0.02%  0.02%   0 UDLD
  56        4472    225452         19  0.00%  0.00%  0.00%   0 DHCP Snooping
  57        1684    418158          4  0.00%  0.00%  0.00%   0 Port-Security
  58   5184162522191289623        236  0.79%  0.86%  0.88%   0 IP Input
  59           0         1          0  0.00%  0.00%  0.00%   0 ICMP event handl
  60    37368648 120931944        309  0.39%  0.35%  0.35%   0 CDP Protocol
  61      181312  24961555          7  0.00%  0.00%  0.00%   0 Inline power inc
  62           0         9          0  0.00%  0.00%  0.00%   0 SNMP Timers
  63          80       386        207  0.00%  0.00%  0.00%   0 AAA Accounting

CORE# show process cpu
CPU utilization for five seconds: 46%/1%; one minute: 41%; five minutes: 41%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
   1           4       345         11  0.00%  0.00%  0.00%   0 Chunk Manager
   2      226776   4998687         45  0.00%  0.00%  0.00%   0 Load Meter
   3        8120      4221       1923  0.00%  0.00%  0.00%   0 SpanTree Helper
   4           0         1          0  0.00%  0.00%  0.00%   0 Deferred Events
   5    43272644   4284313      10100  0.15%  0.22%  0.17%   0 Check heaps
   6        1268      4149        305  0.00%  0.00%  0.00%   0 Pool Manager
   7           0         2          0  0.00%  0.00%  0.00%   0 Timers
   8           0         2          0  0.00%  0.00%  0.00%   0 Serial Backgroun
   9           0         1          0  0.00%  0.00%  0.00%   0 AAA_SERVER_DEADT
  10           0         2          0  0.00%  0.00%  0.00%   0 AAA high-capacit
  11           0         1          0  0.00%  0.00%  0.00%   0 Policy Manager
  12        1600    418117          3  0.00%  0.00%  0.00%   0 IPC Dynamic Cach
  13           0         1          0  0.00%  0.00%  0.00%   0 IPC Zone Manager
  14      221572  24961713          8  0.00%  0.00%  0.00%   0 IPC Periodic Tim
  15      202904  24961713          8  0.00%  0.00%  0.00%   0 IPC Deferred Por
  16      216060   2790596         77  0.00%  0.00%  0.00%   0 IPC Seat Manager
  17           0         1          0  0.00%  0.00%  0.00%   0 IFS Agent Manage
  18   430018784 619313007        694  2.07%  2.14%  2.11%   0 ARP Input
  19          80        16       5000  0.00%  0.00%  0.00%   0 Entity MIB API
  20           0         1          0  0.00%  0.00%  0.00%   0 SERIAL A'detect
  21      304484  24961712         12  0.00%  0.00%  0.00%   0 Dynamic ARP Insp
  22      838788   6143110        136  0.00%  0.00%  0.00%   0 HC Counter Timer
  23           0         1          0  0.00%  0.00%  0.00%   0 Critical Bkgnd
  24     1838064   9350229        196  0.00%  0.00%  0.00%   0 Net Background
  25       44036    516229         85  0.00%  0.00%  0.00%   0 Logger
  26      342328  24961688         13  0.00%  0.00%  0.00%   0 TTY Background
  27     1772896  26727934         66  0.07%  0.01%  0.00%   0 Per-Second Jobs
  28    11810388    763869      15461  0.00%  0.03%  0.00%   0 Per-minute Jobs
  29  28869864521293294003       2232 16.71% 14.13% 14.00%   0 Cat4k Mgmt HiPri
  30  17790069002524685123        704 10.87%  7.63%  7.40%   0 Cat4k Mgmt LoPri
  31      568940  35352723         16  0.00%  0.00%  0.00%   0 Galios Reschedul
  32          68      1558         43  0.00%  0.00%  0.00%   0 IOS ACL Helper
  33           0         2          0  0.00%  0.00%  0.00%   0 NAM Manager
  34      336860   5566244         60  0.00%  0.00%  0.00%   0 rf task
  35          52        26       2000  0.00%  0.00%  0.00%   0 GalRedMsgProc
  36           0         1          0  0.00%  0.00%  0.00%   0 RTTYS Process
  37      437632  24962560         17  0.00%  0.00%  0.00%   0 RedStateMonitor
  38      510664  14042749         36  0.00%  0.00%  0.00%   0 Net Input
  39          76      3620         20  0.00%  0.00%  0.00%   0 BACK CHECK
  40    13174224  13993570        941  0.07%  0.07%  0.07%   0 Compute load avg
  41         164      2570         63  0.00%  0.00%  0.00%   0 chkpt message ha
  42           0         2          0  0.00%  0.00%  0.00%   0 cpf_process_msg_
  43       16200     57473        281  0.00%  0.00%  0.00%   0 cpf_process_ipcQ
  44           0       843          0  0.00%  0.00%  0.00%   0 AggMgr Process
  45           0         1          0  0.00%  0.00%  0.00%   0 SFF8472
  46           8         7       1142  0.00%  0.00%  0.00%   0 Collection proce
  47           0         3          0  0.00%  0.00%  0.00%   0 CEF switching ba
  48           0         2          0  0.00%  0.00%  0.00%   0 AAA Dictionary R
  49           0         2          0  0.00%  0.00%  0.00%   0 AAA Server
  50           0         1          0  0.00%  0.00%  0.00%   0 AAA ACCT Proc
  51           0         1          0  0.00%  0.00%  0.00%   0 ACCT Periodic Pr
  52  3029378732 915275705       3309 13.59% 13.75% 13.77%   0 Spanning Tree
  53     7463196  94788827         78  0.07%  0.04%  0.05%   0 DTP Protocol
  54       49400   2500355         19  0.00%  0.00%  0.00%   0 Ethchnl
  55     1126688  25105549         44  0.00%  0.02%  0.01%   0 UDLD
  56        4472    225453         19  0.00%  0.00%  0.00%   0 DHCP Snooping
  57        1684    418160          4  0.00%  0.00%  0.00%   0 Port-Security
  58   5184171122191292069        236  0.55%  0.80%  0.85%   0 IP Input
  59           0         1          0  0.00%  0.00%  0.00%   0 ICMP event handl
  60    37368828 120932445        309  0.31%  0.35%  0.35%   0 CDP Protocol
  61      181312  24961652          7  0.00%  0.00%  0.00%   0 Inline power inc
  62           0         9          0  0.00%  0.00%  0.00%   0 SNMP Timers
  63          80       386        207  0.00%  0.00%  0.00%   0 AAA Accounting
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  64       19652    483540         40  0.00%  0.00%  0.00%   0 CEF background p
  65           0         1          0  0.00%  0.00%  0.00%   0 IP IRDP
  66      103140    450346        229  0.00%  0.00%  0.00%   0 IP Background
  67       21148    418142         50  0.00%  0.00%  0.00%   0 IP RIB Update
  68           0         2          0  0.00%  0.00%  0.00%   0 XDR mcast
  69           0         1          0  0.00%  0.00%  0.00%   0 IPC LC Message H
  70           0         1          0  0.00%  0.00%  0.00%   0 XDR RP Ping Back
  71        1216    215646          5  0.00%  0.00%  0.00%   0 XDR RP backgroun
  72           0         1          0  0.00%  0.00%  0.00%   0 XDR RP Test Back
  73    13874588  47202137        293  0.23%  0.17%  0.16%   0 CEF: IPv4 proces
  74          12       949         12  0.00%  0.00%  0.00%   0 ADJ background
  75       95700    138729        689  0.00%  0.00%  0.00%   0 L2MM
  76      131716   1670818         78  0.00%  0.00%  0.00%   0 MRD
  77     3106896  17808086        174  0.00%  0.00%  0.00%   0 IGMPSN
  78           4         5        800  0.00%  0.00%  0.00%   0 IGMPSN-HA
  79           0         6          0  0.00%  0.00%  0.00%   0 Socket Timers
  80           0         4          0  0.00%  0.00%  0.00%   0 L2TRACE SERVER
  81        1200     72112         16  0.00%  0.00%  0.00%   0 TCP Timer
  82         176       269        654  0.00%  0.00%  0.00%   0 TCP Protocols
  83        1576     93680         16  0.00%  0.00%  0.00%   0 HTTP CORE
  84           0         1          0  0.00%  0.00%  0.00%   0 CHKPT EXAMPLE
  85           0         1          0  0.00%  0.00%  0.00%   0 CHKPT DevTest
  86           0         2          0  0.00%  0.00%  0.00%   0 ATIP_UDP_TSK
  87           0         3          0  0.00%  0.00%  0.00%   0 DHCP Snooping HA
  88           0         1          0  0.00%  0.00%  0.00%   0 Probe Input
  89       67268    449985        149  0.00%  0.00%  0.00%   0 RARP Input
  90  16849857601839895074        915  0.07%  0.06%  0.07%   0 DHCPD Receive
  91           0         1          0  0.00%  0.00%  0.00%   0 COPS
  92        1516    313596          4  0.00%  0.00%  0.00%   0 Cluster L2
  93       51748   2500405         20  0.00%  0.00%  0.00%   0 Cluster RARP
  94           0         2          0  0.00%  0.00%  0.00%   0 LOCAL AAA
  95           0         2          0  0.00%  0.00%  0.00%   0 AAA Cached Serve
  96           0         2          0  0.00%  0.00%  0.00%   0 TPLUS
  97           4         4       1000  0.00%  0.00%  0.00%   0 Crypto CA
  98           0         1          0  0.00%  0.00%  0.00%   0 Crypto PKI-CRL
  99           0         1          0  0.00%  0.00%  0.00%   0 Crypto SSL
 100           0         3          0  0.00%  0.00%  0.00%   0 RADIUS TEST CMD
 101           0         2          0  0.00%  0.00%  0.00%   0 AAA SEND STOP EV
 102     7868292 570401311         13  0.15%  0.12%  0.13%   0 PM Callback
 103      444384   7886711         56  0.00%  0.00%  0.00%   0 VLAN Manager
 104       19396    418116         46  0.00%  0.00%  0.00%   0 GalRedConfSynPlf
 105          48      1049         45  0.00%  0.00%  0.00%   0 VTP Trap Process
 106           0         2          0  0.00%  0.00%  0.00%   0 DHCP Security He
 107           0         1          0  0.00%  0.00%  0.00%   0 DiagCard1/-1
 108           0         1          0  0.00%  0.00%  0.00%   0 DiagCard2/-1
 109           0         1          0  0.00%  0.00%  0.00%   0 DiagCard3/-1
 110           0         1          0  0.00%  0.00%  0.00%   0 DiagCard4/-1
 111           0         1          0  0.00%  0.00%  0.00%   0 DiagCard6/-1
 112           0         1          0  0.00%  0.00%  0.00%   0 DiagCard7/-1
 113           0         1          0  0.00%  0.00%  0.00%   0 Syslog Traps
 114           0         2          0  0.00%  0.00%  0.00%   0 VTPMIB EDIT BUFF
 115           0         7          0  0.00%  0.00%  0.00%   0 SPAN switch
 116    77743820 308678280        251  0.00%  0.03%  0.14%   0 IP SNMP
 117    16016000 140458285        114  0.00%  0.00%  0.01%   0 PDU DISPATCHER
 118    71410232 153377081        465  0.00%  0.04%  0.17%   0 SNMP ENGINE
 119           0         1          0  0.00%  0.00%  0.00%   0 SNMP ConfCopyPro
 120           4         3       1333  0.00%  0.00%  0.00%   0 SNMP Traps
 121        5376    638915          8  0.00%  0.00%  0.00%   0 NTP
 122          36       823         43  0.00%  0.00%  0.00%   0 Dot1x Authentica
 123           0         2          0  0.00%  0.00%  0.00%   0 Dot1x Backend Pr
 124      419568   7370144         56  0.07%  0.00%  0.00%   0 LACP Protocol
 125     4032404 705052187          5  0.07%  0.06%  0.07%   0 RADIUS
 126        1968    209186          9  0.00%  0.00%  0.00%   0 DHCPD Timer
 127      244600  12480884         19  0.00%  0.00%  0.00%   0 System polling
 128       50680   7102228          7  0.00%  0.00%  0.00%   0 DHCPD Database
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 130         232       433        535  0.23%  0.02%  0.00%   1 Virtual Exec

Do przełącznika wpięte jest ok 25 przełączników 2960, robi routing pomiędzy vlanami i tyle.

Co może być przyczyną takich opóźnień, bo widać pewien wzorzec i to mnie zastanawia?

[martino76]

Witam,

Widac, ze kilka procesow uzywa sporo CPU

Kod: Zaznacz cały

29  28869751001293273092       2232 12.76% 14.38% 14.07%   0 Cat4k Mgmt HiPri
30  17790011722524682300        704  5.31%  7.19%  7.34%   0 Cat4k Mgmt LoPri
52  3029366188 915272177       3309 14.03% 13.77% 13.78%   0 Spanning Tree 

Sprawdz czy nie masz problemu z STP i nie zmienia Ci sie topologia.

Zerknij na ten link moze pomoze.

Pozdro,

[lbromirs]

Witam,

Widac, ze kilka procesow uzywa sporo CPU

Kod: Zaznacz cały

29  28869751001293273092       2232 12.76% 14.38% 14.07%   0 Cat4k Mgmt HiPri
30  17790011722524682300        704  5.31%  7.19%  7.34%   0 Cat4k Mgmt LoPri
52  3029366188 915272177       3309 14.03% 13.77% 13.78%   0 Spanning Tree 

Te procesy akurat mogą i nic to złego nie oznacza.

Wracając... co to znaczy 'opóźnienia'? Co konkretnie mierzysz na tym wykresie? Ping do CPU przełącznika?

[lukis]

Mierzę, narzędziem podobnym do mtr, opóźnienia do hopów na drodze np. do google.com. Załączyłem charakterystykę opóźnień dla pierwszego hopa (mój catalyst) i zastanawiają mnie wg mnie duże wartości 20-30 ms (czasem ponad 200) i ta powtarzalność tych opóźnień, praktycznie co 2 min pojawia się duża wartość później kolejne mniejsze, normuje się, mija 2 min i znów wysoka wartość. Wiem, że odpowiedź na ping nie jest priorytetowa dla urządzeń i stąd mogą się pojawiać dłuższe czasy odpowiedzi, ale ten "wzór" jest ciekawy... Pingi do internetu też się wahają w zakresie +/- 20 ms i szukam przyczyny. Wiadomo, że internet internetem, ale z domu mam stabilne czasy odpowiedzi, a łącza w firmie są od "poważnych" operatorów i po światłowodzie.

Sprawdz czy nie masz problemu z STP i nie zmienia Ci sie topologia.

Catalyst jest rootbridgem dla wszystkich vlanow, obserwowałem przez jakiś czas i nic się w tej kwestii nie zmienia.

[Gizmo]

A nie masz przypadkiem założonej qos-policy na control plane? Sam sie tak oszukałem, jak założyłem jakieś bardzo restrykcyjne ustawienia i okazało sie , że przy próbie mtutrace miałem mtu na ścieżce rzędu 500b a co drugi ping nie przechodził, lub przechodził z dużym opóźnieniem.

[lukis]

A nie masz przypadkiem założonej qos-policy na control plane? Sam sie tak oszukałem, jak założyłem jakieś bardzo restrykcyjne ustawienia i okazało sie , że przy próbie mtutrace miałem mtu na ścieżce rzędu 500b a co drugi ping nie przechodził, lub przechodził z dużym opóźnieniem.

show policy-map nic nie pokazuje, a z tego co wygooglałem z tego poziomu powinienem widzieć te policy?

[Gizmo]

Chyba najszybciej to

Kod: Zaznacz cały

sh run | s control

control-plane host
 service-policy input ICMP
control-plane

[lukis]

Chyba najszybciej to

Kod: Zaznacz cały

sh run | s control

control-plane host
 service-policy input ICMP
control-plane

niema żadnych policy:

CORE#sh run | incl contro
dot1x system-auth-control

CORE#sh run | incl polic
vlan internal allocation policy ascending

[lxs]

Ten switch ma spore obciążenie CPU cały czas.
Czy problemy jakościowe sa widoczne cały czas czy tylko podczas piku? Od zawsze masz takie problemy w sieci?

Skoro "zdarzenie" występuj cyklicznie co 1,5-2 minuty, to najprościej jest zrobić span-port na switchu (zebrać to co wpada na cpu
tutaj link ) i wklepać skrypt EEM
LINK

A na sam początek możesz wkleić to output z tego:

Kod: Zaznacz cały

show platform cpu packet statistics
sho spanning detail | include is executing|from|topology

Na moje oko, to coś powoduje przeliczanie STP, bo 25 switchy L2 to ładna chmurka L2

[lukis]

Ten switch ma spore obciążenie CPU cały czas.
Czy problemy jakościowe sa widoczne cały czas czy tylko podczas piku? Od zawsze masz takie problemy w sieci?

Skoro "zdarzenie" występuj cyklicznie co 1,5-2 minuty, to najprościej jest zrobić span-port na switchu (zebrać to co wpada na cpu
tutaj link ) i wklepać skrypt EEM
LINK

A na sam początek możesz wkleić to output z tego:

Kod: Zaznacz cały

show platform cpu packet statistics
sho spanning detail | include is executing|from|topology

Na moje oko, to coś powoduje przeliczanie STP, bo 25 switchy L2 to ładna chmurka L2

Problemy jakościowe są przez cały czas bez związku z pikiem, przetestowałem to przed chwilą, żeby być na 100% pewnym, że na jakość transmisji z internetu niema wpływu obciążenie związane z ruchem lokalnym. Wahania szybkości transmisji są w granicach 40%. Wygląda to tak jakby tcp się rozpędzało, spada, potem rośnie i znów spada itd.

Czy problemy są od zawsze tego nie wiem. To nowa praca.

CORE#show platform cpu packet statistics
Packets Dropped In Hardware By CPU Subport (txQueueNotAvail)

CPU Subport TxQueue 0 TxQueue 1 TxQueue 2 TxQueue 3
------------ --------------- --------------- --------------- ---------------
0 0 0 0 2482782850
3 33376623321 0 0 0
4 342420 0 0 0


RkiosSysPacketMan:
Packet allocation falures: 0
Packet Buffer(Software Common) allocation falures: 0
Packet Buffer(Software ESMP) allocation falures: 0
Packet Buffer(Software EOBC) allocation falures: 0
IOS Packet Buffer Wrapper allocation falures: 0

Packets Dropped In Processing Overall

Total 5 sec avg 1 min avg 5 min avg 1 hour avg
-------------------- --------- --------- --------- ----------
2456988 0 0 0 0

Packets Dropped In Processing by CPU event

Event Total 5 sec avg 1 min avg 5 min avg 1 hour avg
----------------- -------------------- --------- --------- --------- ----------
Control Packet 2456312 0 0 0 0
Output Acl 312 0 0 0 0
SA Miss 298 0 0 0 0

Packets Dropped In Processing by Priority

Priority Total 5 sec avg 1 min avg 5 min avg 1 hour avg
----------------- -------------------- --------- --------- --------- ----------
Normal 378 0 0 0 0
Medium 364 0 0 0 0
Crucial 2456312 0 0 0 0

Packets Dropped In Processing by Reason

Reason Total 5 sec avg 1 min avg 5 min avg 1 hour avg
------------------ -------------------- --------- --------- --------- ----------
SrcAddrTableFilt 241 0 0 0 0
STPDrop 3 0 0 0 0
L2DstDrop 64 0 0 0 0
L2DstDropInAcl 2456310 0 0 0 0
AclNoVlan 306 0 0 0 0
NoDstPorts 20 0 0 0 0
NoFloodPorts 44 0 0 0 0

Total packet queues 16

Packets Received by Packet Queue

Queue Total 5 sec avg 1 min avg 5 min avg 1 hour avg
---------------------- --------------- --------- --------- --------- ----------
Esmp 3403793066 155 156 132 121
Control 116053708 9 4 3 0
Host Learning 17734166 0 0 0 0
L3 Fwd Low 272470180 1 3 4 0
L2 Fwd Low 2555685250 145 126 104 104
L3 Rx Low 1029919135 1 1 2 6
RPF Failure 16 0 0 0 0
ACL fwd(snooping) 215454184 4 1 3 3
ACL log, unreach 81658956 3 0 1 2
ACL sw processing 1065 0 0 0 0

Packets Dropped by Packet Queue

Queue Total 5 sec avg 1 min avg 5 min avg 1 hour avg
---------------------- --------------- --------- --------- --------- ----------
Host Learning 519 0 0 0 0
L2 Fwd Low

CORE#sho spanning detail | include is executing|from|topology
VLAN0001 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 530 last change occurred 03:52:09 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0003 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 559 last change occurred 03:52:09 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0007 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 611 last change occurred 01:02:20 ago
from GigabitEthernet7/27
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0008 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 503 last change occurred 03:52:09 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0009 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 563 last change occurred 03:52:09 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0010 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 533 last change occurred 03:52:10 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0011 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 5250 last change occurred 03:52:10 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0012 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 12821 last change occurred 03:52:10 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0013 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 804 last change occurred 03:52:11 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0014 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 6510 last change occurred 03:52:12 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0015 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 503 last change occurred 03:52:12 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0020 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 45484 last change occurred 03:52:12 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0022 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 587 last change occurred 03:52:12 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0025 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 198 last change occurred 03:52:12 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0030 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 151 last change occurred 03:52:12 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0040 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 580 last change occurred 03:52:19 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0041 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 11011 last change occurred 03:52:19 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0042 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 6267 last change occurred 03:52:19 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0043 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 1747 last change occurred 03:52:19 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0044 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 503 last change occurred 03:52:19 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0050 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 507 last change occurred 03:52:19 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0051 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 5188 last change occurred 03:52:20 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0052 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 1098 last change occurred 03:52:20 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0061 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 503 last change occurred 03:52:21 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0071 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 519 last change occurred 03:52:21 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0072 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 502 last change occurred 03:52:21 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0073 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 502 last change occurred 03:52:21 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0074 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 502 last change occurred 03:52:21 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0075 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 1060 last change occurred 03:52:21 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0095 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 1179 last change occurred 03:52:21 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300
VLAN0097 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 1180 last change occurred 03:52:22 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0098 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 1167 last change occurred 03:52:22 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0099 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 526 last change occurred 03:52:23 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0100 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 536 last change occurred 03:52:23 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0101 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 583 last change occurred 03:52:23 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0102 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 516 last change occurred 03:52:23 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 1, topology change 0, notification 0, aging 300
VLAN0134 is executing the ieee compatible Spanning Tree protocol
Number of topology changes 502 last change occurred 03:52:23 ago
from Port-channel2
Times: hold 1, topology change 35, notification 2
Timers: hello 0, topology change 0, notification 0, aging 300

Jeżeli dobrze to interpretuję, to prawie 4h temu stp przekalkulowywało topologię? Jaki może być tego powód? na catalyście mam:

spanning-tree vlan 1-200 priority 4096

i

CORE#sho spanning-tree root priority
VLAN0001 4097
VLAN0003 4099
VLAN0007 4103
VLAN0008 4104
VLAN0009 4105
VLAN0010 4106
VLAN0011 4107
VLAN0012 4108
VLAN0013 4109
VLAN0014 4110
VLAN0015 4111
VLAN0020 4116
VLAN0022 4118
VLAN0025 4121
VLAN0030 4126
VLAN0040 4136
VLAN0041 4137
VLAN0042 4138
VLAN0043 4139
VLAN0044 4140
VLAN0050 4146
VLAN0051 4147
VLAN0052 4148
VLAN0061 4157
VLAN0071 4167
VLAN0072 4168
VLAN0073 4169
VLAN0074 4170
VLAN0075 4171
VLAN0095 4191
VLAN0097 4193
VLAN0098 4194
VLAN0099 4195
VLAN0100 4196
VLAN0101 4197
VLAN0102 4198
VLAN0134 4230

[jarek6]

Witajcie,

mam problem z wg mnie dziwnymi opóźnieniami do catalysta 4507. Opóźnienie wygląda jak w poniższym obrazku:

Czy ten wykres to ping do samego Cat4K czy do jakiegos hosta wpietego do niego ?

[lbromirs]

To jeszcze jedno.

Czy tego 4500 nie odpytuje coś po SNMP okresowo?

[lukis]

To jeszcze jedno.

Czy tego 4500 nie odpytuje coś po SNMP okresowo?

Tylko zenoss. Wyłączyłem go i nic się nie zmieniło.

Jeżeli dobrze to interpretuję, to prawie 4h temu stp przekalkulowywało topologię? Jaki może być tego powód? na catalyście mam:

Sam odpowiem, w STP zmiana topologii występuje przy każdej zmianie stanu dowolnego interfejsu up/down, chyba, że na interfejsie jest portfast wtedy TCN nie są generowanie i zmiany topologii nie ma. Ja mam na wszystkich interfejsach, na których są hosty portfast, więc włączanie/wyłączenie komputerów nie jest przyczyna zmiany topologii. Ciekawi mnie dlaczego we wszystkich vlanach zmiana topologii występuje w tym samym czasie?