traceroute fabric unicast-flow
Syntax
traceroute fabric unicast-flow flow-spec-name flow-specification-name fma fma-name <source-fmep fmep-name> <dest-fmep fmep-name> <forced-fte-interface fte-interface> <count count> <verbose>
Description
Trace the path taken by a specific unicast flow (ping) operation across a VLAN on the QFabric system from a source maintenance endpoint (FMEP) to a destination FMEP. The source and destination FMEPs may be on the same Node device, different Node devices connected to the same Interconnect device, or different Node devices connected to different Interconnect devices.
The flow path is the sequence of Packet Forwarding Engine forwarding hops along which the protocol data unit (PDU) travels. The hop-by-hop sequence and number of hops are reported in terms of fabric maintenance intermediate points (FMIPs), which are interfaces on the Packet Forwarding Engine of the Interconnect device. An FMIP sends a response to the source FMEP when the traceroute PDU is received.
Options
| dest-fmep-id source-fmep-id | (Optional) ID of the destination FMEP of the traceroute operation. |
| flow-spec-name flow-specification-name | Name of the flow specification that defines the parameters of the traceroute operation. |
| fma-name fma-name | Name of the FMA that associates a VLAN with the FMEPs. |
| forced-fte-interface fte-interface | (Optional) Option to force the fabric ping operation to use the specified FTE interface to inject the PDU into the fabric instead of using the internal forwarding path lookup table to determine the FTE interface. |
| source-fmep-id source-fmep-id | (Optional) ID of the FMEP that is the source of the traceroute operation. |
| verbose | (Optional) Detailed version of the output display. |
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Output Fields
Table 1 lists
the output fields for the traceroute fabric-unicast-flow command. Output fields are listed in the approximate order in which
they appear.
Field Name |
Field Description |
|---|---|
|
Source and destination FMEP names. |
|
Name of the flow specification. |
|
Ethernet frame size. |
|
MAC address of the source FMEP interface. |
|
MAC address of the destination FMEP interface. |
|
EtherType protocol. |
|
FMIP identifier and interface name of the FMIP that received the PDU and responded to the source FMEP. |
|
Number of responses that are received after the traceroute operation has finished. |
Sample Output
traceroute fabric unicast-flow
user@host> traceroute fabric unicast-flow fma-name fma1 source-fmep-id 1 dest-fmep-id 2 flow-spec-name fspec1 Received response from fmip-id 128.40.0.8, interface A0003:0/1/2 Received response from fmip-id 128.128.0.8, interface A0003:0/0/8 Received response from fmep-id 2 Received total 3 responses
Sample Output
traceroute fabric unicast-flow (Verbose)
user@host> traceroute fabric unicast-flow fma-name fma1 source-fmep-id 1 dest-fmep-id 2 flow-spec-name fspec1 verbose Fabric flow traceroute between source ED1494 destination ED1497 Using fabric flow-specification: fspec1 Ethernet frame-size: 256 Source-MAC: 0:EF:7:99:85:10 Destination-MAC: 0:D3:A6:11:39:21 Ethertype: 11564 Received response from fmip-id 128.40.0.8, interface A0003:0/1/2 Received response from fmip-id 128.128.0.8, interface A0003:0/0/8 Received response from fmep-id 2 Received total 3 responses
Release Information
Command introduced in Junos OS Release 12.2.