User's Manual

Brocade Network Advisor IP User Manual 445
53-1003056-01
Ethernet fabric traceroute
14
Ethernet fabric traceroute
NOTE
All nodes in the VCS cluster must have the NETCONF interface availability for L2TraceRoute and
must be running Network OS 3.0.0 or later.
Traceroute diagnostics enables you to determine the connectivity, path, and reachability of the
Ethernet fabric between a source port and a destination port within an individual VCS fabric. You
can perform traceroute diagnostics from any RBridge where the source MAC address is learned in
the VCS cluster and that RBridge becomes the starting node for the traceroute packet. Once
configured, the traceroute request identifies the Equal Cost Multi-Path (ECMP) path a packet takes
from the source address to a destination address. Traceroute performs a hop-by-hop inspection
between two end-device MAC addresses to identify the traffic loss and any points of congestion in
the path.
Tracing Ethernet fabric routes
1. To diagnose traceroute, you can do either of the following:
• Select Monitor > Diagnostics > Traceroute.
• Right-click the VM and select Diagnostics > Traceroute.
• Right-click the VCS and select Diagnostics > Traceroute.
The Traceroute dialog box displays (see Figure 166). The Source field displays the
corresponding VM MAC addresses by default and the Destination field is blank.
If you do not have the privilege to lauch traceroute, the following warning message
displays:
You do not have privilege to perform this operation.
Click OK to close the warning message.
If VCS is not managed or discovered by the Management application, the following error
message displays:
Unable to launch Traceroute dialog because the selected VM is not connected to VCS or
the VCS is not managed by Network Advisor.
Click OK to close the error message.
FIGURE 166 Traceroute dialog box