Manual:CRS3xx series switches

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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.

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Warning: This article applies to CRS3xx series switches and not to CRS1xx/CRS2xx series switches.


FeaturesDescription
Forwarding
  • Configurable ports for switching or routing
  • Full non-blocking wirespeed switching
  • Up to 16k MAC entries in Unicast FDB for Layer 2 unicast forwarding
  • Up to 1k MAC entries in Multicast FDB for multicast forwarding
  • Up to 256 MAC entries in Reserved FDB for control and management purposes
  • All Forwarding Databases support IVL and SVL
  • Configurable Port based MAC learning limit
  • Jumbo frame support (CRS1xx: 4064 Bytes; CRS2xx: 9204 Bytes)
Mirroring
  • Various types of mirroring:
    • Port based mirroring
    • VLAN based mirroring
    • MAC based mirroring
  • 2 independent mirroring analyzer ports
VLAN
  • Fully compatible with IEEE802.1Q and IEEE802.1ad VLAN
  • 4k active VLANs
  • Flexible VLAN assignment:
    • Port based VLAN
    • Protocol based VLAN
    • MAC based VLAN
  • From any to any VLAN translation and swapping
  • 1:1 VLAN switching - VLAN to port mapping
  • VLAN filtering
Port Isolation and Leakage
  • Applicable for Private VLAN implementation
  • 3 port profile types: Promiscuous, Isolated and Community
  • Up to 28 Community profiles
  • Leakage profiles allow bypassing egress VLAN filtering
Trunking
  • Supports static link aggregation groups
  • Up to 8 Port Trunk groups
  • Up to 8 member ports per Port Trunk group
  • Hardware automatic failover and load balancing
Quality of Service (QoS)
  • Flexible QoS classification and assignment:
    • Port based
    • MAC based
    • VLAN based
    • Protocol based
    • PCP/DEI based
    • DSCP based
    • ACL based
  • QoS remarking and remapping for QoS domain translation between service provider and client networks
  • Overriding of each QoS assignment according to the configured priority
Shaping and Scheduling
  • 8 queues on each physical port
  • Shaping per port, per queue, per queue group
Access Control List
  • Ingress and Egress ACL tables
  • Up to 128 ACL rules (limited by RouterOS)
  • Classification based on ports, L2, L3, L4 protocol header fields
  • ACL actions include filtering, forwarding and modifying of the protocol header fields

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

See also

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