Manual:CRS3xx series switches: Difference between revisions
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===Port Switching=== | ===Port Switching=== | ||
Since v6.40rc29 on CRS3xx series switches bridges will handle all Layer2 forwarding and the use of switch chip (<code>hw-offload</code>) will automatically turn on if appropriate conditions are met. | |||
Since | |||
The rest of RouterOS Switch features remain untouched in usual menus. | The rest of RouterOS Switch features remain untouched in usual menus. | ||
By default all newly created bridge ports have <code>hw=yes</code> option and it allows enabling of <code>hw-offload</code> when possible. If such functionality is not required, it can be disabled by <code>hw=no</code> on bridge port to have completely software operated bridging. | By default all newly created bridge ports have <code>hw=yes</code> option and it allows enabling of <code>hw-offload</code> when possible. If such functionality is not required, it can be disabled by <code>hw=no</code> on bridge port to have completely software operated bridging. | ||
{{Note | Downgrading to previous RouterOS versions will not restore master-port configuration. The bridge with no hw-offload will appear instead and master-port configuration will have to be redone from the beginning.}} | {{Note | Downgrading to previous RouterOS versions will not restore master-port configuration. The bridge with no hw-offload will appear instead and master-port configuration will have to be redone from the beginning.}} | ||
* Port switching with bridge configuration and enabled hw-offload since v6.40rc29 | * Port switching with bridge configuration and enabled hw-offload since v6.40rc29 | ||
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</pre> | </pre> | ||
Following list states what features currently in 6.41rc will '''enable''' hardware offloading on CRS3xx series switches: | |||
* Features in Switch menu | |||
* Bridge STP/RSTP | |||
* Bridge MSTP | |||
* Bridge IGMP Snooping | |||
* Bridge VLAN Filtering | |||
Following | Following list states what features currently in 6.41rc will '''disable''' hardware offloading on CRS3xx series switches: | ||
* bonding | |||
== See also == | == See also == | ||
Revision as of 11:22, 11 October 2017
Applies to RouterOS: v6.41 +
Summary
The Cloud Router Switch series are highly integrated switches with high performance ARM CPU and feature-rich packet processor. The CRS switches can be designed into various Ethernet applications including unmanaged switch, Layer 2 managed switch, carrier switch and wired unified packet processing.
Warning: This article applies to CRS3xx series switches and not to CRS1xx/CRS2xx series switches.
| Features | Description |
|---|---|
| Forwarding |
|
| Mirroring |
|
| VLAN |
|
This table clarifies main differences between Cloud Router Switch models.
| Model | Switch Chip | CPU | Wireless | SFP+ port | Access Control List | Jumbo Frame (Bytes) |
| CRS326-24G-2S+ | Marvell-98DX3236 | 400MHz | - | + | + | 10218 |
| CRS317-1G-16S+ | Marvell-98DX8216 | 800MHz | - | + | + | 10218 |
Port Switching
Since v6.40rc29 on CRS3xx series switches bridges will handle all Layer2 forwarding and the use of switch chip (hw-offload) will automatically turn on if appropriate conditions are met.
The rest of RouterOS Switch features remain untouched in usual menus.
By default all newly created bridge ports have hw=yes option and it allows enabling of hw-offload when possible. If such functionality is not required, it can be disabled by hw=no on bridge port to have completely software operated bridging.
Note: Downgrading to previous RouterOS versions will not restore master-port configuration. The bridge with no hw-offload will appear instead and master-port configuration will have to be redone from the beginning.
- Port switching with bridge configuration and enabled hw-offload since v6.40rc29
[admin@MikroTik] > interface bridge export /interface bridge add name=bridge1 igmp-snooping=no protocol-mode=none /interface bridge port add bridge=bridge1 interface=ether2 add bridge=bridge1 interface=ether3 add bridge=bridge1 interface=ether4 add bridge=bridge1 interface=ether5 [admin@MikroTik] > [admin@MikroTik] > interface bridge port print Flags: X - disabled, I - inactive, D - dynamic, H - hw-offload # INTERFACE BRIDGE HW PVID PRIORITY PATH-COST INTERNAL-PATH-COST HORIZON 0 H ether2 bridge1 yes 1 0x80 10 10 none 1 H ether3 bridge1 yes 1 0x80 10 10 none 2 H ether4 bridge1 yes 1 0x80 10 10 none 3 H ether5 bridge1 yes 1 0x80 10 10 none [admin@MikroTik] >
Following list states what features currently in 6.41rc will enable hardware offloading on CRS3xx series switches:
- Features in Switch menu
- Bridge STP/RSTP
- Bridge MSTP
- Bridge IGMP Snooping
- Bridge VLAN Filtering
Following list states what features currently in 6.41rc will disable hardware offloading on CRS3xx series switches:
- bonding
See also
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