Supported Platforms
Configuring the Virtual Chassis Operations to Trace
By default, the router logs only important events. You can specify which operations to trace for an MX Series Virtual Chassis by including specific tracing flags when you configure tracing. Table 1 describes the flags that you can include.
Table 1: Tracing Flags for MX Series Virtual Chassis
Flag | Description |
|---|---|
all | Trace all operations. |
auto-configuration | Trace Virtual Chassis ports that have been automatically configured. |
csn | Trace Virtual Chassis complete sequence number (CSN) packets. |
error | Trace Virtual Chassis errored packets. |
graceful-restart | Trace Virtual Chassis graceful restart events. |
hello | Trace Virtual Chassis hello packets. |
krt | Trace Virtual Chassis kernel routing table (KRT) events. |
lsp | Trace Virtual Chassis link-state packets. |
lsp-generation | Trace Virtual Chassis link-state packet generation. |
me | Trace Virtual Chassis mastership election (ME) events. |
normal | Trace normal events. |
packets | Trace Virtual Chassis packets. |
parse | Trace reading of the configuration. |
psn | Trace partial sequence number (PSN) packets. |
route | Trace Virtual Chassis routing information. |
spf | Trace Virtual Chassis shortest-path-first (SPF) events. |
state | Trace Virtual Chassis state transitions. |
task | Trace Virtual Chassis task operations. |
To configure the flags for the Virtual Chassis operations to be logged:
- Specify the tracing flag that represents the operation
you want to trace.[edit virtual-chassis]user@host# set traceoptions flag flag
- (Optional) Specify one or more of the following additional
tracing options for the specified flag:
- To generate detailed trace output, use the detail option.
- To disable a particular flag, use the disable option.
- To trace received packets, use the receive option.
- To trace transmitted packets, use the send option.
For example, to generate detailed trace output for Virtual Chassis mastership election events in received packets:
[edit virtual-chassis]user@host# set traceoptions flag me detail receive
