Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 609
Supported Error Codes
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- Forwarding code - error code as present in the response blocks - Source Network/Mask - source mask Example of the mtrace Command to View the Network Path The following is an example of tracing a multicast route. R1>mtrace 103.103.103.3 1.1.1.1 226.0.0.3 Type Ctrl-C to abort. Querying reverse path for source 103.103.103.3 to destination 1.1.1.1 via group 226.0.0.3 From source (?) to destination (?) |Hop| OIF IP |Proto| Forwarding Code |Source Network/Mask| 0 1.1.1.1 --> Destination -1 1.1.1.1 PIM Reached RP/Core 103.103.103.0/24 -2 101.101.101.102 PIM - 103.103.103.0/24 -3 2.2.2.1 PIM - 103.103.103.0/24 -4 103.103.103.3 --> Source The following table explains the output of the mtrace command: Table 65. mtrace Command Output - Explained Command Output Querying reverse path for source 103.103.103.3 to destination 1.1.1.1 via group 226.0.0.3 From source (?) to destination (?) 0 1.1.1.1 --> Destination -1 1.1.1.1 PIM Reached RP/Core 103.103.103.0/24 Description mtrace traverses the reverse path from the given destination to the given source for the given group In case the provided source or destination IP can be resolved to a hostname the corresponding name will be displayed. In cases where the IP cannot be resolved, it is displayed as (?) The first row in the table corresponds to the destination provided by the user. The information in each of the response blocks is displayed as follows: • o (-1) Hop count is always a negative number to indicate reverse path • o (1.1.1.1) Outgoing interface address at that node for the source and group • o (PIM) Multicast protocol used at the node to retrieve the information • o (Reached RP/Core) Forwarding code in mtrace to denote that RP node is reached • o (103.103.103.0/24) Source network and mask. In case (*G) tree is used, this field will have the value as (shared tree). In case no value is noted in the record or in case of error like No Route or Wrong Last Hop the value (default) will be displayed -4 103.103.103.3 --> Source The last line in the table corresponds to the source address provided by the user. Supported Error Codes Error codes denote problems in the network that has caused the mtrace query to fail. These codes not only provide error information but also provide general information such as RP node reachability information. Multicast Features 609
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