Ethernet IEEE 802.3
==== Data Packet Structure ==== On a physical layer Ethernet packet consists of a preamble and a start . . . Tag Protocol Identifier - 0x8100 and 2-octet VLAN number) and a mandatory 2-octet !EtherType field. . . . octets = 1538 octets. The maximum efficiency for VLAN traffic is: 1,500 / 1,542 = 97.28% The throughput . . .
3K - last updated 2016-11-14 05:07 UTC by 1431
Layer 2
* [[Ethernet IEEE 802.3]] * [[Frame Relay]] * [[ATM]] * [[MPLS]] * [[Redundancy and Spanning Tree Protocol . . . STP]] * [[VLAN]] * [[Private VLAN]] * [[Etherchannel]] . . .
1K - last updated 2021-11-07 11:34 UTC by 1431
Private VLAN
Private VLANs divide VLANs into multiple sub-VLANs. This is an old technology. 802.1x is a better alternative. . . . Private VLANs use one Primary VLAN, which is the original VLAN, . . . and multiple Secondary VLANs, which can be isolated or community type. Hence, . . . switch port can be assigned to one of these 3 VLANs. If it is a member of the Primary VLAN, it is . . . called promiscuous port. Member of the isolated VLAN can only communicate to the promiscuous port (Primary . . .
2K - last updated 2016-11-28 23:08 UTC by 1431
Redundancy and Spanning Tree Protocol STP
Multiple inter-switch links are good for redundancy but would create bridge loops (without STP). Bridge . . . MAC entries in its address table for affecting VLAN from 300 sec to 15 sec (Forwarding Interval). . . . show spanning-tree summary # show spanning-tree vlan 1 detail # debug spanning-tree event A unidirectional . . . a standard IEEE 802.1d form does not account for VLANs. Cisco has its proprietary modification called . . . PVST+ that runs one instance of STP per each VLAN. VLAN id is added to a switch priority. VLANs . . .
12K - last updated 2016-11-23 07:13 UTC by 1431
snort
snort is an open source package that runs under most OSs including Windows. It can be run in few modes: . . . supports multiple configurations for different VLANs or subnets withing a single instance of snort. . . . config binding: <path1_to_snort.conf> vlan <list> config binding: <path2_to_snort.conf> net . . .
13K - last updated 2016-12-08 10:39 UTC by 1431
Solaris Zones
= Solaris Zones = This page is a collection of resources related to Solaris 10 partitioning technology, . . . could be in a form of a physical interface or a VLAN. Therefore, a non-global zone's network traffic . . .
14K - last updated 2008-08-31 13:53 UTC by 1431
VLAN
Virtual Local Area Network (VLAN) divides large physical LAN into smaller logical segments, thus reducing . . . the broadcast domain. VLAN is statically assigned to switch ports or dynamically . . . users and MAC addresses. There are two types of VLANs: * End-to-end VLANs - members reside on different . . . by policies, not physical location. * Local VLAN - members likely reside on the same switch. Membership . . . example, the same floor in a building. Creating VLANs is easy: config# vlan <number> config# vlan <name> . . .
5K - last updated 2016-12-06 01:50 UTC by 1431
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