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Full Discussion: monitoring network traffic
Top Forums UNIX for Dummies Questions & Answers monitoring network traffic Post 35252 by Perderabo on Thursday 3rd of April 2003 12:20:47 PM
Old 04-03-2003
First, I make sure that the network is the bottleneck. Once I'm sure that it is, I complain to the network people. They take it from there.

Sometimes I have to work with them. And I do need to be sure that the host is talking correctly to its link partner. If a network card is in half-duplex mode, while the port is in full-duplex mode then network performance will suffer severely and at least half of that problem is mine.

But you need to understand that the network is not my responsibility. I am part of a team that administers some things that connect to it.
 

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VLAN(7) 						 Miscellaneous Information Manual						   VLAN(7)

NAME
VLAN - virtual local area network DESCRIPTION
This manpage provides a brief overview of VLAN (virtual LAN) technology. VLANs are logical, or network segments that can span multiple physical network segments. A primary benefit of VLANs is that they can iso- late broadcast and multicast traffic by determining which destinations should receive that traffic, thereby making better use of switch and end-station resources. Logical separation using VLAN allows for the logical grouping of PCs, servers and other network resources to behave as if they were con- nected to the same, physical segment, even if they are not. HP-UX VLAN is an implementation of IEEE 802.1p/Q standards. VLAN interfaces can be configured in HP-UX servers using the command (see nwmgr_vlan(1M)) or (see lanadmin_vlan(1M)). HP recommends that you use for HP-UX Release 11i Version 3 and forward. Interfaces can also be configured using the web-based management tool HP-UX System Management Homepage (HP SMH). Each VLAN interface created is assigned a VLAN PPA (VPPA) that is unique across the system and a VLAN ID, that identifies the virtual LAN it is part of. The VLAN ID is unique on the interface on which the VLAN interface is created. WARNINGS
The and commands are deprecated. These commands will be removed in a future HP-UX release. HP recommends the use of replacement command nwmgr(1M) to perform all network interface-related tasks. SEE ALSO
lanadmin(1M), lanadmin_vlan(1M), lanscan(1M), nwmgr(1M), nwmgr_vlan(1M), smh(1M). IEEE 802.1p, IEEE 802.1Q VLAN(7)
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