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Timeout On Slot 0 Port 0

  • Hi, came across Fa 0/0/0 S0/0/0 etc in my study modules, its been mentioned everywhere without clear explanation. While I have an idea it represents Slots & Ports in routers and switchs but what does each of the 3 numbers represent in say Fa0/0/0 or S 0/0/0?
  • Solved: Hi, I´d like to add a third A5500-HI switch to an existing IRF stack. (All with firmware release R5105) So, let´s look at the setup from the HP A5500-HI.
Time out on slot 0 port 0 5

Introduction

This document describes solutions to some common digital signal processor (DSP) related isses and ways to determine if the issue is hardware related or not.

Time out on slot 0 port 0 5

DSP is not in UP State

  1. Collect the output of the show voice dsp group all command.
  2. Reset the DSPs if necessary and enter the test dsp device <slot> <dsp-id> reset command.
  3. If the DSPs do not return to an UP state, reboot the router.
  4. If one of the DSPs fails and cannot be recovered when you use any of these methods, enter the test dsp device <slot#> <DSP_ID> remove | reset | restore command in order to minimize the impact of DSPs that go into a DOWN state.
  5. Return material authorize (RMA) any DSP that does not return to an UP state.

Troubleshoot Packet Voice Digital Signal (PVDM -2)

Network devices have network interfaces, usually more than one. Routers can have literally hundreds and so can large switches. The Junos OS supports many types of interfaces. To understand the command used to configure a network interface carrying user traffic, it helps to have an overview of the options available in the set interface command.

  1. On the router, copy the startup configuration onto a TFTP server with the command copy startup-config-tftp.
  2. Open the startup configuration file with a text editor.
  3. Add these debugs at the start of the file:
  4. Save the startup configuration file.
  5. Copy the startup configuration file to the router's startup-config. For example, run copy tftp://<ip>/startup-config startup-confi in the route console. Debug is enabled in the startup configuration.
  6. Reload the router and collect the logs.

DSP Timeouts

Each time a query is sent, a timer is started and you must wait for its response. When a response is not received, the DSP_TIMEOUT message appears. There are several reasons why DSP timeouts occur:

  • Messages are sent to DSP in incorrect mode
  • Messages are sent in incorrect sequence
  • Messages are sent with incorrect parameters
  • Platform issues or internal DSP problems

There are several decoding events:

Time Out On Slot 0 Port 0 15

  • A: PLAYOUT_DELAY : Playout Delay Stats
  • B: PLAYOUT_ERROR : Playout Error Stats
  • C: RX_STAT : Receive Packet Stats
  • D: TX_STAT : Transmit Packet Stats
  • E: LEVEL_STATS : At Call Cleanup
  • F: ERROR_STATS : At Call Cleanup
  • G: FAX_RELAY : In Fax Relay Mode
  • H: MODEM_RELAY : In Modem Relay Mode
  • I: CLOCK_COMP : In PassThru Mode

See this example:

Timeouts that occur on a single DSP channel might indicate a hardware failure. Follow these steps:

  1. Enable Mini-Logger.
  2. Collect the output of show log as soon as the timeout event occurs.

DSP Alarms

See this example of a DSP alarm:

Enter the command show voice dsp detailed and check if there was a crash in the restory (RST) number of resets per DSP and alarm indication (Al) fields. See this example:

Enter the command show voice dsp error and show specific errors. See this example:

Configure the mini-logger and the crash-dump. See the Configure Crash Dump and Enable Mini-Logger section for instructions on how to configure the mini-logger and the crash-dump and collect the complete output of the show log command.

No More Ring Descriptors Error

This error is seen in two scenarios:

  • DSP crashes
  • The DSP buffer is full

See this example:

If the DSP crashes, use the approach in the DSP Alarms section.

If the DSP is full, enable the mini-logger and collect the output of the show log command as soon as the event occurs.

Time Out On Slot 0 Port 0 5

TDM Connect Issue

Cisco exec timeout 0 0

See this example for a TDM connect issue:

Cisco bug ID CSCuj64211 is a very common issue in this scenario. Reboot the router as a temporary solution to the problem until you can upgrade to one of the fixed releases of the product.

See these useful show commands:

See these debugs that you must collect for a test call:

For this issue, you can use Cisco IOS? Embedded Event Manager (EEM) script. See this example:

See this link for more details on the configuration process for an EEM script: EEM Configuration for Cisco Integrated Services Router Platforms.

Com Port 0

Configure CrashDump and Mini-Logger

The DSP Mini-Logger and CrashDump utilities are useful tools that gather evidence that help troubleshoot DSP crashes. The Mini-Logger captures forensic evidence up to the point of the DSP crash, while CrashDump captures evidence during the crash and right after the crash occurs. Enter these commands in order to enable these features:

DSP CrashDump

Time Out On Slot 0 Port 00

For example: voice dsp crash-dump destination flash:dspcrashdump.

Time Out On Slot 0 Port 0 Error

DSP Mini-Logger

Cisco Exec Timeout 0 0

Best Practice Settings

Use these best practice settings:

  • Set the CrashDump file limit no higher than a value of 5.
  • Crash Dump destination should be a TFTP filesystem. Flash is also acceptable if TFTP is not available.
  • MiniLogger buffers for control and intervals can be set up to a value of 10,000.
  • MiniLogger max-logger-print can reach a value of up to 1,000.
  • Disable console logging or you will cause the CPU to spike to dangerous values.
  • Send everything, which includes the syslog, to an external server.