Troubleshooting Guide

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Table Of Contents

Contents
Chapter 1: Introduction
- Purpose
- Related resources
- Support
Chapter 2: Safety messages
- Notices
Chapter 3: New in this document
- Features
Chapter 4: Data collection required for Technical Support cases
- Data collection for an outage
  - Collecting data before you restart
  - Collecting data after you restart
- Data collection for non outage problems
  - Gathering critical information
Chapter 5: Troubleshooting planning fundamentals
- Proper installation and routine maintenance
- Network configuration
- Normal behavior on the network
Chapter 6: Troubleshooting fundamentals
- Connectivity problems
- Routing table problems
- LED indications of problems
- Cable connection problems
- Alarm database
Chapter 7: Troubleshooting tool fundamentals
- Troubleshooting overview
- Digital Diagnostic Monitoring
- Flight Recorder
- Port mirroring
- General diagnostic tools
Chapter 8: Log and trap fundamentals
- Overview of traps and logs
- Secure syslog
- Simple Network Management Protocol
- Log message format
- Log files
- Log file transfer
Chapter 9: Log configuration using ACLI
- Configuring a UNIX system log and syslog host
  - Job aid
- Configuring secure forwarding
  - Variable definitions
- Installing root certificate for syslog client
  - Variable definition
- Configuring logging
- Configuring the remote host address for log transfer
- Configuring system logging to external storage
- Configuring system message control
- Extending system message control
- Viewing logs
- Configuring ACLI logging
Chapter 10: Log configuration using EDM
- Configuring the system log
- Configuring the system log table
Chapter 11: SNMP trap configuration using ACLI
- Configuring an SNMP host
- Configuring SNMP interfaces
- Enabling SNMP trap logging
Chapter 12: SNMP trap configuration using EDM
- Configuring an SNMP host target address
- Configuring target table parameters
- Configuring SNMP notify filter profiles
- Configuring SNMP notify filter profile table parameters
- Enabling authentication traps
Chapter 13: Traps reference
- Proprietary traps
- Standard traps
Chapter 14: Hardware troubleshooting
- Using trace to diagnose hardware problems
- Troubleshooting USB viewing problems
Chapter 15: Software troubleshooting
- Failure to read failed configuration file
- No Web management interface access to a device
- Cannot enable encryption
- Debug files
Chapter 16: Software troubleshooting tool configuration using ACLI
- Using ACLI for troubleshooting
- Using software record dumps
- Using trace to diagnose problems
- Using trace to diagnose IPv6 problems
- Viewing and deleting debug files
- Configuring port mirroring
- Configuring global mirroring actions with an ACL
- Configuring ACE actions to mirror
- Clearing ARP information for an interface
- Flushing routing, MAC, and ARP tables for an interface
- Pinging an IP device
- Running a traceroute test
- Showing SNMP logs
- Using trace to examine IS-IS control packets
- Viewing the metric type of IS-IS route in TLVs – detailed
- Viewing the metric type of IS-IS route in TLVs – summarized
Chapter 17: Software troubleshooting tool configuration using EDM
- Flushing routing tables by VLAN
- Flushing routing tables by port
- Configuring port mirroring
- Configuring ACLs for mirroring
- Configuring ACEs for mirroring
- Running a ping test
- Viewing ping results
- Viewing ping probe history
- Running a traceroute test
- Viewing traceroute results
- Viewing the traceroute history
Chapter 18: Layer 1 troubleshooting
- Troubleshooting fiber optic links
Chapter 19: Operations and Management
- CFM fundamentals
- CFM configuration using ACLI
- CFM configuration using EDM
- CFM configuration example
  - CFM configuration example
  - CFM sample output
Chapter 20: Upper layer troubleshooting
- Troubleshooting SNMP
- Troubleshooting DHCP
- Troubleshooting DHCP Relay
- Troubleshooting client connection to the DHCP server
- Troubleshooting IPv6 DHCP Relay
- IPv6 DHCP Relay switch side troubleshooting
- IPv6 DHCP Relay server side troubleshooting
- IPv6 DHCP Relay client side troubleshooting
- Enabling trace messages for IPv6 DHCP Relay
- Troubleshooting IPv6 VRRP
- VRRP transitions
- Enabling trace messages for IPv6 VRRP troubleshooting
- Risks associated with enabling trace messages
- VRRP with higher priority running as backup
- Downgrading or upgrading from releases that support different key sizes
- Troubleshooting IPv6 connectivity loss
- Troubleshooting TACACS+
- Troubleshooting RSMLT
Chapter 21: Unicast routing troubleshooting
- Using BGP debugging commands
- Troubleshooting licensed features
- Viewing OSPF errors
- Viewing OSPF neighbor state problems
- Troubleshooting OSPF Init state problems
- Troubleshooting OSPF ExStart/Exchange problems
Chapter 22: Multicast troubleshooting
- Multicast feature troubleshooting
  - Troubleshooting IGMP Layer 2 Querier
    - Querier not elected
    - Enabling trace messages for IGMP Layer 2 querier troubleshooting
  - Troubleshooting IGMPv3 backwards compatibility
Chapter 23: Multicast routing troubleshooting using ACLI
- Viewing IGMP interface information
- Viewing multicast group trace information for IGMP snoop
- Viewing IGMP group information
- Showing the hardware resource usage
- Using PIM debugging commands
- Determining the protocol configured on the added VLAN
- Determining the data stream learned with IP Multicast over Fabric Connect on the VLAN
- Displaying the SPBM multicast database
- Troubleshooting IP Multicast over Fabric Connect for Layer 2 VSNs
- Troubleshooting IP Multicast over Fabric Connect for Layer 3 VSNs
- Troubleshooting IP Multicast over Fabric Connect for IP Shortcuts
- Defining the IS-IS trace flag for IP multicast
Chapter 24: Multicast routing troubleshooting using EDM
- Viewing IGMP interface information
- Viewing IGMP snoop trace information
- Viewing IGMP group information
- Viewing multicast group sources
- Viewing multicast routes by egress VLAN
- Enabling multicast routing process statistics
- Determining the data stream learned when IP Multicast over Fabric Connect is configured on the VLAN
- Showing the SPBM multicast database
Chapter 25: Transparent Port UNI feature troubleshooting using ACLI
- Viewing all configured I-SIDs
- Viewing C-MACs learned on T-UNI ports for an ISID
- Viewing I-SID maximum MAC-limit
Chapter 26: Troubleshooting MACsec
- Viewing the MACsec connectivity association details
- Viewing MACsec status
Chapter 27: Troubleshooting MACsec using EDM
- Viewing MACsec connectivity association details
Chapter 28: Troubleshooting Fabric Attach
- Troubleshooting Fabric Attach using the ACLI
- Troubleshooting Fabric Attach using the EDM
- Fabric Attach troubleshooting example
  - Troubleshooting FA Server rejection of I-SID-to-VLAN assignments using trace

Showing the SPBM multicast database

Determine the database used by the SPBM multicast module.

Procedure

1. In the navigation pane, expand the following folders: Configuration > ISIS > SPBM.

2. Click the IpMcastRoutes tab.

IpMcastRoutes field descriptions

Use the information in the following table to use the IpMcastRoutes tab.

Name Description

VsnIsid Specifies the VSN I-SID.

Group Specifies the group IP address for the IP multicast route.

Source Specifies the IP address where the IP multicast route originated

from.

SourceBeb Specifies the Source Backbone Edge Bridge (BEB) for the IP

multicast route.

VlanId Specifies the VLAN ID.

VrfName Specifies the VRF name.

DataIsid Specifies the VRF ID for the multicast route.

Type Specifies the type for the IP multicast route.

Bvlan Specifies the Backbone VLAN (B-VLAN).

NniInterfaces Specifies the Network-to-Network Interface ports.

Showing the SPBM multicast database

January 2017 Troubleshooting 297

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