S

  scheduler heapcheck poll  

Platform: IOS based
Where: General
Info : Memory valid after some poll.

  scheduler heapcheck process  

Platform: IOS based
Where: General
Info: Validates memory after process.

  scheduler max-task-time 200  

Platform: IOS based
Where: General
Info: Allows you to set the number of milliseconds a specific process is on CPU before it reports debugging information; a relatively easy way to report which process is hogging. sh proc cpu is obviously the best way to track down CPU hogs while on the router, but this command allows you to track down more insidious hogs.

 00:13:18: %SYS-3-CPUHOG: Task ran for 308 msec (3/1), process = Virtual      Exec, PC = 603C9AD8 
  scheduler run-degraded  

Platform: IOS based
Where: General
Info: Causes the scheduler to attempt to keep running even in the face of some sort of fatal process error. The default action of IOS is to have this knob turned off and to crash the router upon the recognition of a fatal error. This is done on a per-process basis. Obviously, some processes are more critical than others, and moving the offending process out of the scheduler won't really buy you any time or information.

  [no] service auto-reset  

Platform: IOS based
Where: General
Info: Used on linecards.

  service internal  

Platform: IOS based
Where: Configuration
Info: This is a really nifty command. Turning it on in global configuration mode allows you to view some previously hidden commands. Turn it on by default and you will eventually find some extras. Some commands are not even accessible unless this is turned on, for example:

 sh proc all-events fex 
  service log backtrace  

Platform: IOS based
Where: Configuration
Info: Provides traceback with every logging instance.

 -Traceback= 603C9AE0 603546C0 60354A48 6035CA58 6035C3F4 6035C34C 60373EBC       603B6D2C 603B6D18 
  service slave-coredump  

Platform: IOS based
Where: Configuration Info: Allows you to dump core when applicable to some slave machine for logging purposes. This takes a long time, depending on the amount of memory in the router. (It is important to note that copying 128MB with varying link speeds occurs before the router enters usable mode, so you basically have added quite a bit of delay into the reload time.) The exception-slave commands inform the router where to dump the core image.

  set trace  

Platform: CatOS based
Where: General
Info: If you enter set trace? , nothing appears; however, if you enter set trace followed by anything else, you will see the command options. Be careful when using this command; make a backup of the configuration first . You can saturate the processor if it is used inappropriately; the Catalyst may reboot constantly or become nonresponsive upon boot. In this case you have to break in and wipe the config very quickly.

  show alignment  

Platform: IOS based
Where: General
Info: Shows memory address alignment:

 Router#show alignment      Alignment data for:      GS Software (RSP-PV-M), Version 11.1(26.1)CC, EARLY DEPLOYMENT      MAINTENANCE INTERIM SOFTWARE      Compiled Thu 27-May-99 20:48 by jjgreen      No alignment data has been recorded.      Total Spurious Accesses 167110746, Recorded 2      Address  Count  Traceback            0  10474  0x6012D488  0x6020FFB4 0x601D5CE0            0  49008  0x6012D488  0x6020D25C 0x6020E744 0x602106B4 
  show async bootp  

Platform: IOS based
Where: General
Info: Displays parameters for BOOTP responses:

 Router# show async bootp      The following extended data will be sent in BOOTP responses:      dns-server 172.22.53.210 
  show biga show inband  

Platform: CatOS
Where: General
Info: Looks for incrementing RsrcErrors (resource errors) in the output of the show in band (hidden) command. (On some Catalyst 5000 Supervisor Engines, this command is hidden under the name show biga .) Basically, this counter is incremented when the processor is too overloaded to perform some of its tasks .

  show bridge group verbose  

Platform: IOS based
Where: General
Info: Shows additional information on each port that the bridge group has enabled.

  show caller  

Platform: IOS based
Where: General
Info: show caller displays caller information. show caller user <username @domain> displays a summary of caller information for the username you provide.

 fi fi #show caller      Active    Idle      Line           User               Service       Time      Time      con 0          -                  TTY           1d13h      00:00:00      Vi1            Async@cb.com       PPP   L2TP    00:00:32   00:00:36      fi fi #show caller user Async@cb.com detailed      User: Async@cb.com, line Vi1, service PPP L2TP      Active time 00:00:44, Idle time 00:00:48      Timeouts:            Absolute  Idle      Limits:          -         00:02:00      Disconnect in:   -         00:01:11      PPP: LCP Open, CHAP (<- local), IPCP      LCP: -> peer, ACCM, AuthProto, MagicNumber, PCompression, ACCompression      <- peer, ACCM, MagicNumber, PCompression, ACCompression      NCP: Listen CDPCP      NCP: Open IPCP      IPCP: <- peer, Address -> peer, Address      Dialer: Connected to 6015, outbound      Idle timer 120 secs, idle 48 secs      Type is DIALER VPDN, group Di1      Cause: Callback return call      IP: Local 1.1.1.1, remote 1.100.0.1      VPDN: NAS main-lac, MID 22, MID Unknown      HGW main-lns, NAS CLID 0, HGW CLID 0, tunnel open      Counts: 53 packets input, 4632 bytes, 0 no buffer      0 input errors, 0 CRC, 0 frame, 0 overrun      15 packets output, 287 bytes, 0 underruns      0 output errors, 0 collisions, 0 interface resets 
  show chunk [summary]  

Platform: IOS based
Where: General
Info: Shows detailed memory information. Can be useful in debugging memory leaks.

 show chunk  beg vtsp      1320 8 2276 537 0 537 0 VTSP EVENT pool 0x618CC5C8      1320 8 713180 537 0 537 0 (data) 0x622BCA58      32 0 852 20 0 20 4 Call Management 0x6182D0D0 
  show controller switch  

Platform: CatOS based 2900XL/3500XL
Where: General
Info: Provides indicative information regarding the total switch utilization. An example is presented here:

 Switch#sh controller switch      Switch registers:      Device Type : 0x00040273      Congestion Threshold : 0x00000E95      Peak Total Allocation : 0x0000001A      Total Allocation : 0x00000000      Peak Total Bandwidth : 0x00000020      Total Bandwidth : 0x00000000      Total Bandwidth Limit : 0x000003DE      Lower Bandwidth Limit : 0x000003DE      Switch Mode : 0x00040000      Switch# 

The Total Bandwidth Limit varies between different 2900XL and 3500XL models. When the total bandwidth reaches the Total Bandwidth Limit value, the switch has reached its full bandwidth capacity and begins to drop packets. The Peak Total Bandwidth is the highest value attained by the total bandwidth since the last time the show controller switch command was executed. Note that the values for the above parameters are in hexadecimal.

The Congestion Threshold value is used as a conservative value for the maximum global buffer utilization. When the buffer utilization noted by Total Allocation reaches this value, the switch may drop frames . The Peak Total Allocation value shows the highest value attained by the Total Allocation since the last time the show controller switch command was executed. It is possible for the Peak Total Allocation and/or the Total Allocation to be greater than Congestion Threshold . If the Total Allocation reaches or is over the Congestion Threshold amount, the switch is experiencing considerable network activity near its full capacity. The global buffer utilization may be adversely affected by several configuration issues:

  • Speed mismatch between an ingress and egress port; for example, several 100 megabit clients transferring files to a server connected to the switch at 10 megabits, half-duplex.

  • Multiple input ports feeding a single output port.

  • Duplex mismatch on multiple ports.

  • Numerous ports that are experiencing collisions and/or output errors due to half-duplex configuration or over-subscription of a slow link.

  show controller switch  

Platform: IOS 12.0(5)
Where: General
Info: Provides indicative information regarding the total switch utilization. Here is an example:

 Switch#show controller switch      Switch registers:      Device Type : 0x00040273      Congestion Threshold : 0x00000E95      Peak Total Allocation : 0x0000001A      Total Allocation : 0x00000000      Peak Total Bandwidth : 0x00000020      Total Bandwidth : 0x00000000      Total Bandwidth Limit : 0x000003DE      Lower Bandwidth Limit : 0x000003DE      Switch Mode : 0x00040000      Switch# 
  show counters [slot/port]  

Platform: IOS based
Where: General
Info: Displays hardware counters for a port:

 Console> (enable) show counters 2/1      Generic counters version 1      64 bit counters      0  rxHCTotalPkts                      =               2170558      1  txHCTotalPkts                      =               2588911      2  rxHCUnicastPkts                    =               2142669      3  txHCUnicastPkts                    =               2585457      4  rxHCMulticastPkts                  =                 19552      5  txHCMulticastPkts                  =                  1789      6  rxHCBroadcastPkts                  =                  8332      7  txHCBroadcastPkts                  =                  1665      8  rxHCOctets                         =             190513843      9  txHCOctets                         =             227423299      10 rxTxHCPkts64Octets                 =                 20996      11 rxTxHCPkts65to127Octets            =               4737279      12 rxTxHCPkts128to255Octets           =                  1170      13 rxTxHCPkts256to511Octets           =                    16      14 rxTxHCpkts512to1023Octets          =                     8      15 rxTxHCpkts1024to1518Octets         =                     0      16 rxDropEvents                       =                     0      32 bit counters 
  show epc  

Platform: IOS
Where: General
Info: From a Catalyst 2048G-L3 (also applies to the Catalyst 4908G-L3 and probably in part to the Catalyst 8500 series):

 gepard#show epc ?      E-PAM show commands:        IF-entry          IF Entry in IF-Table        VC-entry          VC Entry in VC-Table        VLAN-entry        VLAN Entry in VLAN-Table        aal5              aal5 statistics        acl               ACL FPGA related debug commands        adm               Show contents of ADM in IOS        age-timer         Aging Timer        atm-debug-status  ATM debug statistics        atmup_ipmcast     Show Multicast VC leg to external VC mapping        caller-stats      Caller Stats at a merge-point        caller-tags       Caller Tags        cam               Show contents of E-PAM CAM        card              Show information managed by CARD        coredb            show coredb        counters          Counters of all epif-ports        discards          discard statistics        exvc-entry        External VC Entry in VC-Table        fe-channel        FE-Channel Membership Information        fpga              Access ACL FPGA resources        freecam           Free space in CAM        ifmapping         Interface mapping to CAM IF number        ip-address        Show adjacency entries in line cards        ip-prefix         Show IP prefix entries (compare to CEF output)        ipmcast           Show IP Multicast table in E-PAM CAM        ipx-node          Show IPX node entry in E-PAM CAM        ipx-prefix       Show IPX prefix in E-PAM CAM        jaguar-fpga-epld  Access ACL2 EPLD Addresses with WID=2        lec-ipx           Show LEC Local IPX information        lsipc             Show LSIPC information        mac               Show MAC address in E-PAM        macfilter         Show MAC filter address database        mailbox           Read the mailbox value        mem               Show contents of packet memory in E-PAM        patricia          Show Patricia tree in E-PAM CAM        port-qos          Show current port qos configuration        queueing          Queueing statistics        register          Print contents of EPIF register        ri-register       Show last reported contents of EPIF RI register        sm                Show 1483 Local static map information        spd               Selective packet drop statistics        status            Status of all epif-ports        switching         VC switching statistics        tcam              TCAM related commands        ucode             uCode images on all epif-ports        udp-flood         Show LS UDP-flooding information 

Some of these commands are documented as part of the Catalyst 8540 documentation but are also useful on the Catalyst 2948G-L3, which seems to be based (at least partly) on the same hardware platform as the Catalyst 8540.

  show idb  

Platform: IOS 12.{01}
Where: General
Info: Shows the maximum number of IDBs and the number of IDBs currently in use (along with their memory consumption).

 Router#show idb      Maximum number of IDBs 4096      42 SW IDBs allocated (2440 bytes each)      40 HW IDBs allocated (5760 bytes each)      HWIDB#1    1   SRP0/0 (HW IFINDEX, SRP)      HWIDB#2    2   POS1/0 (HW IFINDEX, SONET, Serial)      HWIDB#3    7   FastEthernet3/0 (HW IFINDEX, Ether)      HWIDB#4    8   FastEthernet3/1 (HW IFINDEX, Ether)      HWIDB#5    9   FastEthernet3/2 (HW IFINDEX, Ether)      HWIDB#6    10  FastEthernet3/3 (HW IFINDEX, Ether)      HWIDB#7    11  FastEthernet3/4 (HW IFINDEX, Ether)      HWIDB#8    12  FastEthernet3/5 (HW IFINDEX, Ether)      <output shortened>      HWIDB#22   27  Ethernet0 (HW IFINDEX, Ether) 
  show inband  

Platform: CatOD/XID
Where: General
Info: Outputs statistics about the internal Catalyst 6000 memory channel (interface between two supervisors in a redundant configuration). Can help to diagnose this kind of error:

 "InbandPingProcessFailure:Module 1 not responding over inband."               Inband FX1000 Control Information        General Ctrl Regs:          RegsBase: 42000000           DevCtrl: 003C0001      DevStatus: 0000000F            TxCtrl: 000400FA         RxCtrl: 0000821E        Tx Ctrl Regs:           TxDBase: 019AF000        TxDSize: 00002000           TxDHead:  383        TxDTail:  383              TxIpg: 00A00810        Rx Ctrl Regs:           RxDBase: 019AA000        RxDSize: 00004000           RxDHead:  993        RxDTail:  990                   Inband PCI Information          DeviceID: 1000           VendorID: 8086            Status: 0200            Command: 0116         ClassCode: 020000         Revision: 03           Latency: FC            CacheLine: 08           BaseAddr: 42000004       NonSwapAddr: 00000000       SwapAddr: 02000000      <output shortened> 
  show interface cable <x>/0 privacy statistic  

Platform: IOS based
Where: General
Info: This hidden command may be used to view statistics on the number of SIDs using baseline privacy on a particular cable interface. Here is an example output of this command:

 arhontus# show interface cable 4/0 privacy statistic      CM key Chain Count : 12      CM Unicast key Chain Count : 12      CM Mucast key Chain Count : 3 
  show interfaces cable <cable card> modem 0  

Platform: IOS based
Where: General
Info: This hidden command may be used to view statistics on the number of SIDs using baseline privacy on a particular cable interface.

Here is an example output of this command:

 CMTS# show interface cable 4/0 privacy statistic      CM key Chain Count : 12      CM Unicast key Chain Count : 12      CM Mucast key Chain Count : 3 
  show interface status  

Platform: IOS based
Where: General
Info: Shows status of interfaces:

 Router#show interface status          Port    Name               Status       Vlan       Duplex  Speed Type          Gi2/1                      faulty       routed       full   1000 bad EEPROM 
  show interface switching  

Platform: IOS based
Where: General
Info: Displays the number of packets sent and received on an interface classified by the switching path when used in user EXEC and privileged EXEC modes.

  show interfaces [type number] switching  

Platform: IOS based
Where: general
Info: Produces detailed output on the switching paths used on a particular interface (or on all interfaces). Also shows SPD statistics.

 Router# show interface switching      FastEthernet0/0                Throttle count          0                         Drops         RP          0         SP           0                   SPD Flushes       Fast          0        SSE           0                   SPD Aggress       Fast          0                  SPD Priority     Inputs          0      Drops           0          Protocol IP                Switching path    Pkts In   Chars In    Pkts Out  Chars Out                       Process         24       8208          0           0                  Cache misses          0          -          -           -                          Fast          0          0          0           0                     Auton/SSE          0          0          0           0          Protocol  DECnet                Switching path    Pkts In   Chars In    Pkts Out  Chars Out                       Process          0          0          0           0                  Cache misses          0          -          -           -                          Fast          0          0          0           0                     Auton/SSE          0          0          0           0      .........      ........          Protocol  IPv6                Switching path    Pkts In   Chars In    Pkts Out  Chars Out                       Process          0          0          0           0                  Cache misses          0          -          -           -                          Fast          0          0          0           0                     Auton/SSE          0          0          0           0          Protocol  Other                Switching path    Pkts In   Chars In    Pkts Out  Chars Out                       Process          2        120          3         180                  Cache misses          0          -          -           -                          Fast          0          0          0           0                     Auton/SSE          0          0          0           0          NOTE: all counts are cumulative and reset only after a reload.      Interface POS4/0 is disabled 
  show interfaces stat  

Platform: IOS based
Where: General
Info: Shows statistics on the switching path used (per interface or all):

 RouterA#show interfaces stat       Ethernet0                 Switching path    Pkts In   Chars In    Pkts Out  Chars Out                      Processor      52077   12245489      24646     3170041                    Route cache          0          0          0           0              Distributed cache          0          0          0           0                          Total      52077   12245489      24646     3170041 
  show ip cef internal  

Platform: IOS based
Where: General
Info: Shows FIB load-sharing information for all FIB entries:

 router#show ip cef 141.1.0.0 255.255.0.0 internal      141.1.0.0/16, version 10758832, per-destination sharing      0 packets, 0 bytes        via 194.221.43.81, 0 dependencies, recursive          next hop 194.77.146.254, GigabitEthernet4/0/0 via 194.221.43.80/30           valid adjacency        Recursive load sharing using 194.221.43.80/30        Load distribution: 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 (refcount 48739)        Hash  OK  Interface                 Address          Packets        1     Y   GigabitEthernet0/0/0      195.244.119.164        0        2     Y   GigabitEthernet4/0/0      194.77.146.254         0        3     Y   GigabitEthernet0/0/0      195.244.119.164        0        4     Y   GigabitEthernet4/0/0      194.77.146.254         0        <output shortened>        16    Y   GigabitEthernet4/0/0      194.77.146.254         0 
  show ip ospf events  

Platform: IOS based
Where: General
Info: Monitors OSPF. This command displays all the events that have occurred to OSPF on the backbone router.

  show ip ospf statistics  

Platform: IOS based
Where: General Info: Allows you to see whether the SPF algorithm is being run more than ordinary. Shows that recalculation of SPF is done every 10 seconds, as shown in the example that follows . It is triggered by the router and network LSA. There is a problem in the same area as the current router.

 r4# show ip ospf statistics        Area 0: SPF algorithm executed 46 times        SPF calculation time      Delta T   Intra D-Intra Summ    D-Summ  Ext     D-Ext   Total    Reason      00:01:36   0    0       0       0       0       0       0        N,      00:01:26   0    0       0       0       0       0       0        R, N,      00:01:16   0    0       0       0       0       0       0        R, N,      00:01:06   0    0       0       0       0       0       0        R, N,      00:00:56   0    0       0       0       0       0       0        R, N,      00:00:46   0    0       0       0       0       0       0        R, N,      00:00:36   0    0       0       0       0       0       0        R, N,                                                                       kmbgvc      00:00:26   0    0       0       0       0       0       0        R, N,      00:00:16   0    0       0       0       0       0       0        R, N,      00:00:06   0    0       0       0       0       0       0        R, N, 
  show ip route profile  

Platform: IOS based
Where: General
Info: Views the IP routing table profile.

  show ipx eigrp event [event-number]  

Platform: IOS based
Where: General
Info: Shows past EIGRP events.

  show ipx eigrp sia-event  

Platform: IOS based
Where: General
Info: Shows past EIGRP stuck in actives.

  show isdn {active  history  memory  services  status [dsl  serial number]  timers}  

Platform: IOS based
Where: General
Info: active displays current call information, including called number, the time until the call is disconnected, AOC charging units used during the call, and whether the AOC information is provided during calls or at end of calls. history displays historic and current call information, including the called number, the time until the call is disconnected, AOC charging time units used during the call, and whether the AOC information is provided during calls or at the end of calls. status serial number displays the status of a specific ISDN PRI interface created and configured as a serial interface.

  show isis timers  

Platform: IOS based
Where: General
Info: Displays IS-IS timer values. Displays configured and default values for both global and interface IS-IS timers:

 arhontus#sh isis timers        Hello Process          Expiration     Type               0.856  (Parent)                 0.856  L2 Hello (Ethernet3/0)                 6.352  L1 Hello (Ethernet3/0)                 6.940  Adjacency        Update Process          Expiration     Type               1.060  (Parent)                 1.060  Ager                 1.352  L2 CSNP (Ethernet3/0)                 8.616  L1 CSNP (Ethernet3/0)              3:25.860  (Parent)                 3:25.860  LSP refresh                 9:02.160  LSP lifetime                 9:24.568  LSP lifetime                17:16.084  LSP lifetime              20:58.536  Dynamic Hostname cleanup 
  show isis tree  

Platform: IOS based
Where: General
Info: IS-IS link state database AVL tree.

  show llc  

Platform: IOS based
Where: General
Info: Displays the state of LLC connections:

 ibu-7206#sh llc      LLC2 Connections: total of 1 connections      TokenRing3/0 DTE: 4001.68ff.0000 4000.0000.0001 04 04 state NORMAL      V(S)=5, V(R)=5, Last N(R)=5, Local window=8, Remote Window=127      akmax=3, n2=8, Next timer in 8076      xid-retry timer      0/60000   ack timer        0/1000      p timer              0/1000    idle timer   8076/10000      rej timer            0/3200    busy timer       0/9600      akdelay timer        0/100     txQ count        0/2000 
  show mbuf  

Platform: CatOS based
Where: General
Info: The main issue to observe with this command is whether the switch is being starved for memory. Within the display, clusters is the number of buffers that are available for NMP to process incoming packets, which include any broadcast/multicast, management traffic. clfree is the number of buffers that are available for the NMP at any given time. If this is zero, it means that NMP has no buffers to process any incoming frames. Lowest clfree determines the lowest watermark that NMP has hit at any time. If this value is zero but clfree is nonzero, then this means that at one instance NMP ran out of buffers. This can be because of a broadcast of a multicast storm in the management VLAN.

  show modem mapping  

Platform: IOS based
Where: General
Info: Displays a snapshot of all the firmware versions running on all the modems in the access server. Also shows the source location of each version of firmware (for example, running out of Flash, boot Flash, or bundled with Cisco IOS software).

 router# show modem mapping      Slot 1 has Mica Carrier card.      Modem Firmware Firmware      Module Numbers Rev Filename      0 1/0 - 1/5 2.0.1.7 IOS-Default      1 1/6 - 1/11 2.0.1.7 IOS-Default      2 1/12 - 1/17 2.0.1.7 IOS-Default      3 1/18 - 1/23 2.0.1.7 IOS-Default      4 1/24 - 1/29 2.0.1.7 IOS-Default      5 1/30 - 1/35 2.0.1.7 IOS-Default      <output shortened>      flash:mcom-modem-code-3.2.10.bin 3.2.10Microcom F/W and DSP      flash:mica-modem-portware.2.2.3.0.bin 2.2.3.0Mica Portware 
  show polaris fibmgr usage  

Platform: CatOS Based
Where: General
Info: Displays some useful information about the FIB TCAM and the adjacency table when using the PFC2:

 [...]      Total FIB entries:         262144      Allocated FIB entries:      13894      Free FIB entries:          248250      FIB entries used for IP ucast:    13853      FIB entries used for IPX     :        1      FIB entries used for IP mcast:       40      Total adjacencies:         262144      Allocated adjacencies:       1365      Free adjacencies:          260779      Adjacencies used for IP ucast (FIB)            :      288      Adjacencies used for IPX (FIB)                 :        3      Adjacencies used for IP mcast (FIB)            :       36      Adjacencies used for IP mcast (Netflow)        :        0      Adjacencies used for Policy Routing            :     1023      Adjacencies used for Feature Manager (Netflow) :        0      Adjacencies used for Local Director            :        0      Adjacencies used for Diagnostics               :        5      Adjacencies used for FTEP                      :       10      [...] 
  show proc all-events  

Platform: IOS based
Where: General
Info: Shows all process events.

  show profile  

Platform: IOS based
Where: General
Info: Shows CPU profiling.

  show profile detail  

Platform: IOS based
Where: General
Info: Shows CPU profiling.

  show profile terse  

Platform: IOS based
Where: General
Info: Shows CPU profiling.

  show queueing interface [interface]  

Platform: IOS based
Where: General
Info: Gives queueing information on a per-interface basis.

  show region <address>  

Platform: IOS based
Where: General
Info: Shows image layout (at address ).

  show registry <cr>  brief  statistics  registry-name  

Platform: IOS based
Where: General
Info: Memory management.

  show rsp  

Platform: IOS based
Where: General
Info: Determines what memory cache policies are currently configured on your router:

 Router#show rsp        Throttle count 0, DCL timer count 0 active 0, configured 1        netint usec 4000, netint mask usec 200        DCL spurious 0       Caching Strategies:        Processor private memory: write-back        Kernel memory view: write-back        IO (packet) memory: uncached        Buffer header memory: uncached       Router# 
  show slip  

Platform: IOS based
Where: General
Info: Displays the status of all lines configured for SLIP.

  show snmp community  

Platform: IOS based
Where: General
Info: Displays SNMP context information:

 Console> show snmp community      Community Index: sysCommunityRo.0      Community Name: public      Security Name: public      Context Name:      Transport Tag:      Storage Type: read-only      Row Status: active 
  show snmp contact  

Platform: IOS based
Where: General
Info: Displays the SNMP contact information:

 > show snmp contact      Andrew Vladimirov 
  show snmp location  

Platform: IOS based
Where: General
Info: Displays the SNMP location information string:

 > show snmp location      Arhont Ltd Head Quaters 
  show snmp view  

Platform: IOS based
Where: General
Info: Displays the SNMP MIB view configuration:

 Console> show snmp view      View Name: defaultUserView      Subtree OID: 1.3.6.1      Subtree Mask:      View Type: included      Storage Type: volatile      Row Status: active      Control> 
  show sum  

Platform: IOS based
Where: General
Info: Shows current stored image checksum:

 router>show sum      New checksum of 0xEDE08607 matched original checksum 
  show timers  

Platform: IOS based
Where: General
Info: Shows timers for timer command in config mode.

  show traffic  

Platform: IOS based
Where: General
Info: Shows the current backplane utilization and peak utilization for all three busses .

  snmp-server priority {low  normal  high}  

Platform: IOS based
Where: Global configuration
Info: Used to change the priority of SNMP processes. To avoid extensive polling, the priority should be set to low . All SNMP queries sent to a router are prioritized as either low or medium priority, depending on the version of code run by the route processor. This means that processes with a higher priority than the SNMP process will be serviced before SNMP. So regardless of SNMP polling intensity, routing processes will generally be processed before SNMP requests because route processes are high priority. You can view the priorities of each of the router's processes by doing a show process and looking in the Q column (L = Low, M = Medium, H = High). See http://www.cisco.com/warp/public/490/9.html for documentation. This command has no impact on the priority of the snmp trap process.

  [no] snmp-server sparse-tables  

Platform: IOS based
Where: General
Info: Gets the complete SNMP MIB table. With this command you can get every object with SNMP get-next .

  [no] sscop quick-poll  

Platform: IOS based
Where: General
Info: Supposed to help recover if sscop has problems.



Hacking Exposed Cisco Networks
Hacking Exposed Cisco Networks: Cisco Security Secrets & Solutions
ISBN: 0072259175
EAN: 2147483647
Year: 2005
Pages: 117

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