- Index
- Preface
- Product Overview
- Command-Line Interfaces
- Smart Port Macros
- Virtual Switching Systems (VSS)
- Enhanced Fast Software Upgrade (eFSU)
- Fast Software Upgrades
- Stateful Switchover (SSO)
- Non-Stop Forwarding (NSF)
- RPR Supervisor Engine Redundancy
- Layer 2 LAN Port Configuration
- Flex Links
- EtherChannels
- IEEE 802.1ak MVRP and MRP
- VLAN Trunking Protocol (VTP)
- VLANs
- Private VLANs (PVLANs)
- Private Hosts
- IEEE 802.1Q Tunneling
- Layer 2 Protocol Tunneling
- Spanning Tree Protocols (STP, MST)
- Optional STP Features
- IP Unicast Layer 3 Switching
- Policy Based Routing (PBR)
- Layer 3 Interface Configuration
- Unidirectional Ethernet (UDE) and unidirectional link routing (UDLR)
- Multiprotocol Label Switching (MPLS)
- MPLS VPN Support
- Ethernet over MPLS (EoMPLS)
- IPv4 Multicast Layer 3 Features
- IPv4 Multicast IGMP Snooping
- IPv4 PIM Snooping
- IPv4 Multicast VLAN Registration (MVR)
- IPv4 IGMP Filtering
- IPv4 Router Guard
- IPv4 Multicast VPN Support
- IPv6 Multicast Layer 3 Features
- IPv6 MLD Snooping
- Netflow
- NetFlow Data Export (NDE)
- Call Home
- System Event Archive (SEA)
- Backplane Platform Monitoring
- Local SPAN, RSPAN, and ERSPAN
- SNMP IfIndex Persistence
- Top-N Reports
- Layer 2 Traceroute Utility
- Mini Protocol Analyzer
- PFC QoS
- AutoQoS
- MPLS QoS
- PFC QoS Statistics Data Export
- Cisco IOS ACL Support
- Cisco TrustSec (CTS)
- AutoSecure
- MAC Address-Based Traffic Blocking
- Port ACLs (PACLs)
- VLAN ACLs (VACLs)
- Policy-Based Forwarding (PBF)
- Denial of Service (DoS) Protection
- Control Plane Policing (CoPP)
- Dynamic Host Configuration Protocol (DHCP) Snooping
- IP Source Guard
- Dynamic ARP Inspection (DAI)
- Traffic Storm Control
- Unknown Unicast and Multicast Flood Control
- IEEE 802.1X Port-Based Authentication
- Configuring Web-Based Authentication
- Port Security
- Lawful Intercept
- Online Diagnostic Tests
Backplane Traffic Monitoring
•Prerequisites for Backplane Traffic Monitoring
•Restrictions for Backplane Traffic Monitoring
•Information About Traffic Monitoring
•Default Settings for Backplane Traffic Monitoring
•How to Configure Backplane Traffic Monitoring
Note•For complete syntax and usage information for the commands used in this chapter, see these publications:
http://www.cisco.com/en/US/products/ps11846/prod_command_reference_list.html
•Cisco IOS Release 15.1SY supports only Ethernet interfaces. Cisco IOS Release 15.1SY does not support any WAN features or commands.
Tip For additional information about Cisco Catalyst 6500 Series Switches (including configuration examples and troubleshooting information), see the documents listed on this page:
http://www.cisco.com/en/US/products/hw/switches/ps708/tsd_products_support_series_home.html
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Prerequisites for Backplane Traffic Monitoring
None.
Restrictions for Backplane Traffic Monitoring
The syslog message buffer is limited in size. To reduce false alarms and the number of syslog messages, use the following guidelines:
•Traffic can occur in bursts. If a small number of bursts occur in a monitoring interval, it does not represent a capacity overload issue for the system; the hardware buffers are able to absorb the effects and not cause packet drops. For an example, if you set a monitoring interval to 10 seconds and the threshold to 80 percent, there are a total of 10 traffic utilization readings. Assume only 2 of the readings reached 90 percent and the other 8 readings are 20 percent. If the peak threshold of 90 percent is used to compare with the threshold, an unwanted warning syslog message is generated. It is better to use the average 34 percent of the 10 readings to compare with the threshold and not generate warning messages in this case. If the peak value comparison is really needed, you can set the interval to 1 second. Setting the interval to 1 second compares the reading directly with the threshold.
•The number of syslog messages that generate syslog messages are from below the threshold and above the threshold.
Information About Traffic Monitoring
Backplane Traffic Monitoring can monitor the backplane and fabric-channel traffic utilization at a configured interval and threshold.
Traffic monitoring allows the switch to monitor the backplane and fabric channel traffic utilization at a configured interval and threshold. Syslog messages are generated when the traffic utilization is above or below the configured threshold. The following examples show several types of syslog messages:
•00:08:03: %TRAFFIC_UTIL-SP-4-MONITOR_BACKPLANE_REACH_THR: Backplane traffic utilization is 26%, reached threshold(20%) within 10 second interval
•00:08:13: %TRAFFIC_UTIL-SP-4-MONITOR_BACKPLANE_BELOW_THR: Backplane traffic utilization is 18%, below threshold(20%) within 10 second interval
•00:08:44: %TRAFFIC_UTIL-SP-4-MONITOR_FABRIC_IG_REACH_THR: Module 1, Channel 0 ingress traffic utilization is 5%, reached threshold(3%) within 30 second interval
•00:08:44: %TRAFFIC_UTIL-SP-4-MONITOR_FABRIC_EG_REACH_THR: Module 1, Channel 0 egress traffic utilization is 5%, reached threshold(3%) within 30 second interval
•00:09:14: %TRAFFIC_UTIL-SP-4-MONITOR_FABRIC_IG_BELOW_THR: Module 1, Channel 0 ingress traffic utilization is 1%, below threshold(3%) within 30 second interval
•00:09:14: %TRAFFIC_UTIL-SP-4-MONITOR_FABRIC_EG_BELOW_THR: Module 1, Channel 0 egress traffic utilization is 1%, below threshold(3%) within 30 second interval
Default Settings for Backplane Traffic Monitoring
•The default threshold is 80 percent.
•Traffic monitor is off by default.
How to Configure Backplane Traffic Monitoring
To configure the Backplane Traffic Monitoring feature, perform one or more of the following tasks:
When configuring a range of interfaces, you can enter the mod-num as a list or a range. Separate each entry with a comma and each range with a hyphen (-). For example, 1,3,5-9,12.
The following example shows how to enable backplane traffic utilization monitoring:
Router(config)# monitor traffic-util backplane logging interval 50 threshold 100
The following example shows how to disable backplane traffic utilization monitoring:
Router(config)# no monitor traffic-util backplane
The following example shows how to specify the fabric channel traffic utilization monitor interval and threshold for a fabric channel on a specific module:
Router(config)# monitor traffic-util fabric module 8 channel both direction both interval 50 threshold 60
The following example shows how to specify the fabric channel traffic utilization monitor threshold for a specific fabric channel and for egress traffic only:
Router(config)# monitor traffic-util fabric module 6 channel 0 direction egress interval 100 threshold 90
Tip For additional information about Cisco Catalyst 6500 Series Switches (including configuration examples and troubleshooting information), see the documents listed on this page:
http://www.cisco.com/en/US/products/hw/switches/ps708/tsd_products_support_series_home.html
Participate in the Technical Documentation Ideas forum