RMON GUI - Remote network MONitoring
Administrator handbook

Table of contents

RMON Network Layer - Host Table

The table of hosts of the network layer, group 14 of the RMON 2 standard , displays traffic statistics issued and received for each host identified in the network (by IP address for example) and for each protocol (IP, IPX, AppleTalk etc. ... ).

A host with multiple communication protocols or multiple addresses of a single protocol will appear several times in this table for each protocol and for each network address. This is the case of an IP router for example.

To access the host table click on the icon network layer host tableor select the menu option "Network Layer" and "Host Table".

The table of hosts contains the following columns:

Column

Description

 Host Name

The host name retrieved from the LoriotPro directory. If the host name is unknown LoriotPro is unable to detect or discover the MAC address or this host is not declared in the directory.

Network Address

mib object  : nlHostAddress

The network address for this nlHostEntry.
This is represented as an octet string with specific semantics and length as identified
by the protocolDirLocalIndex component of the index.

For example, if the protocolDirLocalIndex indicates an encapsulation of ip, this object is encoded as a length octet of 4, followed by the 4 octets of the ip address, in network byte order.
Protocol

The protocol at the network layer level. The protocolDirLocalIndex value in the index identifies the network layer protocol of the nlHostAddress

Incoming Packets

mib object  : nlHostInPkts
object type :  ZeroBasedCounter32

The number of packets without errors transmitted to this address since it was added to the nlHostTable.  Note that this is the number of link-layer packets, so if a single network-layer packet is fragmented into several link-layer frames, this counter is incremented several times.

Outgoing Packets

mib object  : nlHostOutPkts
object type : ZeroBasedCounter32

The number of packets without errors transmitted by this address since it was added to the nlHostTable. 
Note that this is the number of link-layer packets, so if a single network-layer packet is fragmented into several link-layer frames, this counter is incremented several times.

Incoming Octets

mib object  : nlHostInOctets
object type : ZeroBasedCounter32

The number of octets transmitted to this address since it was added to the nlHostTable (excluding framing bits, but including FCS octets), excluding octets in packets that contained errors.
Note that this doesn't count just those octets in the particular protocol frames but includes the entire packet that contained the protocol.

OutGoing Octets

mib object  : nlHostOutOctets
object type : ZeroBasedCounter32

The number of octets transmitted by this address since it was added to the nlHostTable (excluding framing bits, but including FCS octets), excluding octets in packets that contained errors.
Note that this doesn't count just those octets in the particular protocol frames but includes the entire packet that contained the protocol.

Outgoing MAC Non Unicast Packets

mib object  : nlHostOutMacNonUnicastPkts
object type :

The number of packets without errors transmitted by this address that were directed to any MAC broadcast addresses or to any MAC multicast addresses since this host was added to the nlHostTable.  Note that this is the number of link-layer packets, so if a single network-layer packet is fragmented into several link-layer frames, this counter is incremented several times.

 

 

 


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