X1E Series Wireless Access Controller Cards - Huawei Products
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X1E Series Wireless Access Controller Cards

The X1E series cards are next-generation innovative wireless access controller cards. Integrated with Huawei's first Ethernet Network Processor (ENP), In this way, the cards achieve wired and wireless convergence. The X1E series cards are applicable to Huawei S12700, S9700, and S7700 agile switches. They enrich service functions of the switches and reduce the overall network costs.
• Tbit/s forwarding capability
• 4K access points
•64K users


48-Port 100/1000BASE-X Interface Card (X1E,SFP)

48-Port 10/100/1000BASE-T Interface Card (X1E,RJ45)

4-Port 10GBASE-X and 24-Port 100/1000BASE-X and 8-Port 10/100/1000BASE-T Combo Interface Card (X1E,RJ45/SFP/SFP+)

8-Port 10GBASE-X and 8-Port 100/1000BASE-X and 8-Port 10/100/1000BASE-T Combo Interface Card (X1E,RJ45/SFP/SFP+)

Low network construction costs

  • l On traditional networks, customers need to add independent AC devices or cards to the existing wired network for wireless support. With the introduction of X1E series cards, wired and wireless management is converged, and customers do not need to purchase independent AC devices or cards, which saves network construction costs.

Large wireless forwarding capacity

  • On traditional networks deployed with independent AC devices or cards, wireless service traffic needs to pass through the switch to reach the ACs. This results in unnecessary delay in wireless traffic transmission. The overall wireless forwarding capacity is also restricted due to performance bottleneck of traditional ACs.
  • The native AC encapsulates and decapsulates CAPWAP packets on a service card of the chassis switch. After decapsulation, wireless packets are forwarded in the same way as wired packets. The switch provides a forwarding capacity of up to 1 Tbit/s, eliminating forwarding bottlenecks. The native T-bit AC capability helps customers better cope with challenges in the high-speed wireless era.

Unified wired and wireless convergence management

  • On traditional networks, wired and wireless users are managed by the switch and AC respectively. Scattered management points increase the network operation and maintenance (O&M) difficulty.
  • The native AC unifies wired and wireless user management. The wired and wireless management points are uniformly deployed on the same device to implement wired and wireless convergence management, which simplifies network O&M.

High reliability

  • To ensure reliability, traditional ACs are usually configured to work in 1+1 backup mode. The two ACs require an extra channel to synchronize data between them. Since data is synchronized between two different devices, the real-time performance and reliability are low.
  • The native AC can leverage CSS technology of switches to enhance network reliability. X1E cards of different switches form an Eth-Trunk to connect to downstream switches and synchronize data in real time based on the CSS architecture. This backup mechanism provides higher performance and reliability than the traditional 1+1 backup mode.


Feature Specifications
Networking between APs and ACs * Layer 2 networking
Layer 3 networking
Direct AC connection to Aps
AC Layer 2 bridging or Layer 3 routing
Forwarding mode Tunnel forwarding
Direct forwarding
Wireless networking mode WDS bridging:
Point-to-Point (P2P) wireless bridging
Point-to-multipoint (P2MP) wireless bridging
Automatic topology detection and loop prevention (STP)
Wireless Mesh networking:
Access authentication for mesh Aps
Mesh routing algorithm
Zero touch configuration
AC discovery AC discovery through DHCP Option 43
AC discovery through DNS
AC discovery through CAPWAP
AC discovery through the static AC IP address list
CAPWAP tunnel CAPWAP control channel and data channel (optional)
Forwarding mode configuration based on service sets
CAPWAP heartbeat detection and tunnel reconnection
AC backup Intra-chassis XIE card backup
Inter-chassis X1E card backup in a CSS

Protocol and Management Capabilities

Parameter Specifications
Number of managed APs 1K
(for example : S12700)
Number of access users Entire device: 16K
(for example : S12700)
Single AP: a maximum of 256 (depending on the AP model)
Number of VLANs 4K
Number of ARP entries 256K
(for example : S12700)

Wireless Networking Capabilities



Networking between APs and ACs

APs and ACs can be connected through a Layer 2 or Layer 3 network.
APs can be directly connected to an AC.
APs are deployed on a private network, while ACs are deployed on the public network to implement NAT traversal.
ACs can be used for Layer 2 bridge forwarding or Layer 3 routing.

Forwarding mode

Direct forwarding (distributed forwarding or local forwarding)
Tunnel forwarding (centralized forwarding)
Centralized authentication and distributed forwarding
Before users are authenticated, tunnel forwarding is used. After users are authenticated, local forwarding is used.

Wireless networking mode

WDS bridging:
Point-to-point (P2P) wireless bridging
Point-to-multipoint (P2MP) wireless bridging
Automatic topology detection and loop prevention (STP)
Wireless mesh network
Access authentication for mesh devices
Mesh routing algorithm
Go-online without configuration

AC discovery

An AP can obtain the device's IP address in any of the following ways:

Static configuration
The AC uses DHCP or DHCPv6 to allocate IP addresses to APs.
DHCP or DHCPv6 relay is supported.
On a Layer 2 network, APs can discover the AC by sending broadcast CAPWAP packets.

CAPWAP tunnel

Centralized CAPWAP
CAPWAP control tunnel and data tunnel (optional)
CAPWAP tunnel forwarding and direct forwarding in an extended
service set (ESS)
Datagram Transport Layer Security (DTLS) encryption, which is enabled by default for the CAPWAP control tunnel
Heartbeat detection and tunnel reconnection

Application Scenarios

The X1E series cards are applicable to Huawei S12700, S9700, and S7700 high-end chassis switches. In addition to data access and switching functions of common LPUs, the X1E series cards provide also wireless functions. Therefore, customers only need to deploy the X1E cards to meet wireless requirements but do not need to purchase additional AC hardware. The X1E series cards achieve real convergence of wired and wireless management, reducing network construction costs. The X1E series cards are widely used on networks of various industries, such as enterprise and school campus networks.