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CX910 Switch Module V100R001C00 User Guide 22

This document describes the CX910 10GE switch module (CX910 for short) of the Tecal E9000 server in terms of its features, installation, removal, and configuration. This document applies to the CX910 whose GE/10GE switching planes use the software versions of 1.1.x.x.x, and 1.23-1.99.
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This topic describes the switching planes of the CX910 10GE switch module (CX910 for short) and functions of the switching planes.

CX910 is the switching control unit of a server. It provides data switching for compute nodes in the system and external management network ports and service ports.

The CX910 is installed in a rear slot of the E9000 chassis and is connected to compute nodes, storage nodes, and management modules through the midplane. It exchanges internal data packets and control and management packets to ensure high-speed data transmission.

Table 2-1 describes functions of the CX910 10GE switching plane.

Table 2-1 10GE switching plane function description



Ethernet features


  • Ethernet ports support GE and 10GE and full duplex.
  • 10GE optical ports support passive direct attached cables (DACs).
  • 10GE optical ports support GE and 10GE multi-mode and single-mode optical modules.
  • 10GE optical ports support SFP electrical modules.
  • Flow control on interfaces
  • Jumbo frames
  • Link aggregation
  • Load balancing among links within a trunk
  • Interface isolation and forwarding restrictions
  • Broadcast storm suppression

Virtual Local Area Network (VLAN)

  • Multiple interface types: Access, Trunk, and Hybrid
  • Default VLAN

Media Access Control (MAC)

  • Automatic learning and aging of MAC addresses
  • Static, dynamic, and blackhole MAC address entries
  • Packet filtering based on source MAC addresses
  • Interface-based MAC learning limits

Address Resolution Protocol (ARP)

  • Static and dynamic ARP entries
  • ARP in a VLAN
  • Aging of ARP entries

Ethernet loop protection

Multiple Spanning Tree Protocol (MSTP)

  • Spanning Tree Protocol (STP)
  • Rapid Spanning Tree Protocol (RSTP)
  • MSTP
  • Bridge protocol data unit (BPDU) protection, root protection, and loop protection

Quality of Service (QoS) features

Traffic classification

Traffic classification based on combination of the L2 protocol header, IP 5-tuple, outbound interface, and 802.1p priority

Traffic behavior

  • Access control after traffic classification
  • Traffic policing based on traffic classifiers
  • Re-marking based on the traffic classification result
  • Class-based packet queuing
  • Association between traffic classifiers and traffic behaviors

Queue scheduling

  • Priority queuing (PQ) scheduling
  • Deficit round robin (DRR) scheduling
  • PQ+DRR scheduling
  • Weighted round robin (WRR) scheduling
  • PQ+WRR scheduling

Congestion avoidance

Weighted Random Early Detection (WRED)

Rate limiting on outbound interfaces

Rate limiting on outbound interfaces

Configuration and maintenance

Terminal service

  • Configuration using command lines
  • Error messages and online help in English and Chinese
  • Login through console and STelnet terminals
  • Send function and data communications between terminal users

File system

  • Directory and file management
  • File upload and download using File Transfer Protocol (FTP) and Trivial File Transfer Protocol (TFTP)

Debugging and maintenance

  • Unified management of logs, alarms, and debugging information
  • Electronic labels
  • User operation logs
  • Detailed debugging information for network fault diagnosis
  • Network test tools such as tracert and ping commands
  • Port mirroring and traffic mirroring

Version upgrade

  • Device software loading and in-service software loading
  • In-service upgrade using the basic input/output system (BIOS) menu

Security and management

System security

  • Hierarchical command-line protection based on user levels, preventing unauthorized users from using commands to access switch modules
  • Secure Shell (SSH)
  • Access control list (ACL) filtering
  • DHCP packet filtering (appending the Option 82 field)
  • Defense against control packet attacks
  • Defense against attacks of source address spoofing, LAND, SYN flood (TCP SYN), smurf, ping flood (ICMP echo), teardrop, and ping of death

Network management

  • Internet Control Message Protocol (ICMP)-based ping and tracert
  • Simple Network Management Protocol Version 1/2c/3 (SNMPv1/v2c/v3)
  • Standard management information base (MIB)

The CX910 does not support stacking and layer 3 switching.

Updated: 2018-09-20

Document ID: EDOC1000015891

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