• LANCOM XS-6128QF


10G stackable managed fiber aggregation switch for distributed small & medium enterprise networks

This 10G aggregation switch is a high-performance distribution base for subordinate access switches and offers the highest operational efficiency and reliability. Its full configuration of 20 SFP+ ports (10G) – including 4 mGbE (1G/2.5G/5G/10G) combo ports – and FleX uplink ports with up to 200G uplink capacity guarantees flexibility and investment protection. In addition, the professional PSU redundancy, hot-swappable fan modules and backplane stacking of up to 400G bandwidth ensure fail-safe operation. Management is automated via the LANCOM Management Cloud (SD-LAN) or via Web-GUI and CLI.

Technical features

  • Multi-Gigabit aggregation switch with 20x 10G downlink ports of which 16x SFP+ and 4x multi-Gigabit comboports (SFP+ / 1G/2.5G/5G/10G nBASE-T), plus 4 additional SFP+ ports when using SFP+ modules in the 4x SFP28 ports
  • FleX uplink ports (4x SFP28 (10G/25G) or 2x QSFP+ (40G))
  • Non-blocking backplane stacking via 4 dedicated SFP-DD-FleX ports
  • Full layer 3 functionality through VRRP, DHCP, static and policy-based dynamic routing via OSPF v2/v3 and BGP4
  • Redundant hot-swappable PSU and 2 hot-swappable fans for maximum reliability
  • Front-to-back airflow for optimal cooling in 19” racks
  • Security with configurable access control on all ports as per IEEE 802.1X and access control lists
  • Secure remote management through TACACS+, SSH, SSL, and SNMPv3
  • SD-LAN – for quick and easy configuration via the LANCOM Management Cloud
  • 5-year warranty on all components


Scenario of LANCOM network topologies with aggregation and access switches

Flexible network topologies

The LANCOM XS-6128QF is an ideal aggregation instance for the networking of access switches. Depending on the size of the installation, it integrates into the network topology either on the top level as core switch facing the WAN (2-tier design) or on the second level as distribution switch between a core switch and the access switches (3-tier design).

TCO-optimized design

The design concept of the LANCOM XS-6128QF provides for a very low total cost of ownership (TCO), because all ports are natively available, which saves a costly modular design. So this aggregation switch enables all maximum port options out of the box with combo downlink (copper/fiber) and combo uplink (25G/40G) fiber ports. All ports are industry standard, even for stacking, so there is no need for costly proprietary cables. For example, there is the option of using SFP+ modules in the 4x 25G SFP28 ports for up to 4 additional SFP+ ports. Decentralized stacking thanks to the possibility of using standard short and long range modules is also possible with this model.

State-of-the-art multi-Gigabit performance on all ports

The LANCOM XS-6128QF offers extremely strong port performance and unmatched port flexibility through its future-proof fiber-optic FleX ports. This makes it the perfect foundation for fail-safe networks that can cope with the increasing demands from IoT, mobile devices, and cloud applications. 20 SFP+ ports (10G), 4 of which can be used as multi-Gigabit Ethernet (mGbE) combo ports, serve as a high-performance distribution instance for building switch structures. Enormous backhaul capacity is available via either 2 QSFP+ (40G) or 4 SFP28 (25G) high-speed uplink FleX ports. Non-blocking backplane stacking via 4 SFP-DD FleX ports (50G) ensure "line-speed" switching without latency. Ideal for virtualized applications and use as a higher-level campus switch in very large, distributed enterprise networks. If uplinking or stacking is not required, the front FleX uplink ports can be used as either 4x 10G/25G or 2x 40G downlink ports, and the rear SFP-DD FleX ports can be used as 4x 25G downlink ports for aggregating access switches.

Unsurpassed flexibility with FleX port configuration options

Unmatched port flexibility is provided on the LANCOM XS-6128QF via four different board configurations. The four configuration options
can be conveniently changed via CLI or Web GUI followed by a device reboot. The following table shows the impressive flexibility of the

XS-6128QF switch ports
SFP+ (combo) SFP28 QSFP+ SFP-DD
Option Board configuration Used port bandwidth
1 1 20 x 10G 4 x 25G 4 x 50G
2 1 20 x 10G 4 x 10G* 4 x 50G
3 2 20 x 10G 2 x 40G 4 x 50G
4 3 20 x 10G 4 x 25G 4 x 25G**
5 3 20 x 10G 4 x 10G* 4 x 25G**
6 4 20 x 10G 2 x 40G 4 x 25G**
Port combinations
10G 25G 40G 50G
20 4 4
24 4
20 2 4
20 8
24 4
20 4 2

*via 10G transceiver in the SFP28 port, **via SFP28 tranceiver in the SFP-DD port

Picture of stacked LANCOM aggregation switches

Flexibility and investment protection thanks to LANCOM fail-safe stacking

The LANCOM fail-safe stacking feature keeps your network flexible and your investment secure. Stacking makes child’s play of expanding your network, as several physical switches combine into a single logical unit for convenient maintenance and management. When you expand your network, the new switch automatically receives a configuration from the stack master and is ready to use within seconds. Furthermore, device or network redundancies can be implemented with stacking for maximum reliability. With the LANCOM XS-6128QF, stack processing with a separate backplane CPU remains independent of network load thanks to four dedicated SFP-DD-FleX ports (50G).


Maximum operational security

The LANCOM XS-6128QF can be operated with up to twohot-swappable PSUs (power supply units). This allows a quick and uninterrupted replacement of defective power supply units. Front-to-back airflow design with swappable fans improves cooling in 19-inch racks and extends the product lifetime. Stacking is a major contribution to highly resilient scenarios.

LANCOM konfigurierbare Zugangskontrolle

Configurable access control

The LANCOM XS-6128QF stops rogue clients from gaining unauthorized access to the network. This is ensured by secured access control on all ports as per IEEE 802.1X (port-based, single, multi, and MAC-based) or by ACLs (access control lists).

Full layer 3 functionality

The LANCOM XS-6128QF is capable of performing layer 3 tasks such as DHCP server functionality, i.e. IP address management, or the predefinition of network routes across one or more network segments. Thanks to dynamic routing, the switch can also react quickly to network changes. The optimal route for data traffic within the network is thus constantly redefined by the LANCOM XS-6128QF based on the load level. This results in a load reduction on the router, so that these capacities are then additionally available for handling external data traffic and increase the efficiency of the entire network.

Software defined device management in the LANCOM Management Cloud WEBconfig

SD-LAN – easy management of complex networking scenarios

With the LANCOM Management Cloud, the LANCOM XS-6128QF offers quick and easy network integration as well as automatic provision of the configuration. This makes it easy to manage even complex networking scenarios. With SD-LAN, holistic network orchestration replaces the configuration of individual devices and allows the automatic assignment of VLANs to the required switch ports. Configurations are customized to the multi-site network architecture and, with a click of a mouse, they are rolled-out or updated simultaneously to every site.

Secure remote management

Secure communication protocols such as SSH, SSL and SNMPv3 mean that the LANCOM XS-6128QF is ideal for the professional management of remote networks. The switch also supports the TACACS+ protocol for authentication, authorization and accounting. This optimized solution promises maximum security for multi-site network management and monitoring.

Logo IT security made in Germany

Security "made in Germany"

As a holder of the "IT Security made in Germany" trust mark, LANCOM has also committed to keeping its products free of secret backdoors. This makes the LANCOM switches ideal for operation in sensitive environments and always in accordance with General Data Protection Regulations (GDPR).

Secure Terminal Access

This function provides access to the command line of the LANCOM switch ("CLI tunneling") directly from the LANCOM Management Cloud—encrypted and without leaving the cloud interface. Be it trace or ping commands for rapid troubleshooting, access to low-level configuration parameters and detailed statistics in the LCOS SX operating system, or secure remote access to third-party devices in the local network via the integrated SSH client—Secure Terminal Access offers expert functions and extensive diagnostic and troubleshooting commands on your devices.

Software Lifecycle Management with update guarantee

LANCOM regularly offers free updates for maximum investment protection. Major releases with new features, release updates with minor improvements and bug fixes are available not only for the entire product life cycle, but also for a period of two years after the product’s discontinuation. With a valid warranty, critical security fixes and associated supportare guaranteed for up to five years after the end-of-sales date.

Options & accessories

Recommended access switches

For best possible performance in your distributed networks, we recommend the switch aggregation via SFP+ (10G). The LANCOM access switches listed here are equipped with SFP+ ports and are hence the ideal combination with the LANCOM XS-6128QF.

LANCOM GS-3528 series LANCOM GS-3528XP LANCOM GS-3528X
LANCOM GS-3510 series LANCOM GS-3510XP
LANCOM GS-2328 series LANCOM GS-2328 LANCOM GS-2328F
Foto Robert Beckmann


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Inside Sales International Team

Phone: +49 (0)2405 49936 122