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Template:Networking tswos manual qos (view source)
Revision as of 08:58, 13 October 2023
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==Port priority==
==Port priority==
In QoS, traffic can be prioritized using different methods, and two common ways to set the priority are by Class of Service (CoS) and Differentiated Services Code Point (DSCP). Let's discuss each:
<b>Class of Service (CoS):</b>
<ul>
<li>CoS is a 3-bit field in an Ethernet frame header, used to prioritize packets at the Layer 2 (data link layer) level. It's often used in LANs and can be associated with 802.1p (Priority) tags. CoS values range from 0 to 7, where 0 is the lowest priority, and 7 is the highest. CoS is typically used for local LAN prioritization.</li>
</ul>
<b>Differentiated Services Code Point (DSCP):</b>
<ul>
<li>DSCP is part of the IP header (Layer 3) and is used to prioritize packets at the network level. It is typically used in Wide Area Networks (WANs) and the internet. DSCP values are 6 bits in length, allowing for 64 different priority levels. DSCP values are mapped to different service classes and can be used for more granular QoS.</li>
</ul>
[[File:Networking tswos manual qos port priority.png|border|class=tlt-border]]
[[File:Networking tswos manual qos port priority.png|border|class=tlt-border]]
Storm control is a feature used to prevent broadcast, multicast, or unknown unicast "storms" from overloading a network. These storms can occur when a network device generates a high volume of these types of traffic, leading to congestion and network performance issues. Storm control mechanisms can include broadcast storm control, multicast storm control, and unknown unicast storm control.
Storm control is a feature used to prevent broadcast, multicast, or unknown unicast "storms" from overloading a network. These storms can occur when a network device generates a high volume of these types of traffic, leading to congestion and network performance issues. Storm control mechanisms can include broadcast storm control, multicast storm control, and unknown unicast storm control.
[[File:|border|class=tlt-border]]
[[File:Networking tswos manual qos bandwidth control storm control.png|border|class=tlt-border]]
<table class="nd-mantable">
<table class="nd-mantable">
<th>Value</th>
<th>Value</th>
<th>Description</th>
<th>Description</th>
</tr>
<tr>
<td>Storm control inter frame gap</td>
<td>off | on; default: <b>off</b></td>
<td>Storm control rate include IFG (inter frame gap and preamble).</td>
</tr>
</tr>
<tr>
<tr>
<td></td>
<td></td>
<td>; default: <b>1</b></td>
<td>Bytes | Packets; default: <b>Bytes</b></td>
<td> </td>
<td>Storm control is based on packet count or byte count.</td>
</tr>
<tr>
<td>Multicast burst</td>
<td>Integer [0..1000000]; default: <b>80</b></td>
<td>Multicast burst size of storm control counter in PPS units (packets per second) if mode is packets or Kbps units if mode is bytes </td>
</tr>
<tr>
<td>Broadcast burst</td>
<td>Integer [0..1000000]; default: <b>80</b></td>
<td>Broadcast burst size of storm control counter in PPS units (packets per second) if mode is packets or Kbps units if mode is bytes </td>
</tr>
<tr>
<td>Unicast burst</td>
<td>Integer [0..1000000]; default: <b>80</b></td>
<td>Unicast burst size of storm control counter in PPS units (packets per second) if mode is packets or Kbps units if mode is bytes</td>
</tr>
</tr>
</table>
</table>
[[File:Networking tswos manual qos bandwidth control port storm control.png|border|class=tlt-border]]
<table class="nd-mantable">
<tr>
<th>Field</th>
<th>Value</th>
<th>Description</th>
</tr>
<tr>
<td>Multicast rate</td>
<td>Integer [0..1000000]; default: <b>Disabled</b></td>
<td>Multicast Storm Filtering Control Rate In Kbps units.</td>
</tr>
<tr>
<td>Broadcast Storm Filtering Control Rate In Kbps units.</td>
<td>Integer [0..1000000]; default: <b>Disabled</b></td>
<td>Broadcast Storm Filtering Control Rate In Kbps units.</td>
</tr>
<tr>
<td>Unicast Storm Filtering Control Rate In Kbps units.</td>
<td>Integer [0..1000000]; default: <b>Disabled</b></td>
<td>Unicast Storm Filtering Control Rate In Kbps units.</td>
</tr>
</table>
[[Category:{{{name}}} Network section]]
[[Category:{{{name}}} Network section]]
