SMC Networks SMC8926EM Datasheet

SMC8926EM/50EM

automatically creates and updates all the switching and optional routing

IP and MAC address, port, and VLAN.

Managed 24/48 port Gigabit Stackable
L3 Ethernet Switch with 4 combo SFP slots

Product Overview

The SMC8900 series is a stackable Gigabit Ethernet routing switch with a choice of 24 or 48 Gigabit 10/100/1000BASE-T ports, 4
combo Gigabit Ethernet SFP slots and 2 optional 10 Gigabit Ethernet slots and 2 stacking ports on the rear panel. The SMC8900
series is ideal for service provider edge aggregation, Enterprise wiring closets, data center aggregation and network core deployment.
It provides high performance, resilient stacking, wire speed L2 switching and L3 routing, comprehensive QoS and advanced security

to deliver the scalability and resiliency to increase your company’s productivity while reducing operation cost.

Key Features and Benefits

Resilient Stacking up to 8 units

The SMC8900 series currently includes 2 different models
SMC8926EM and SMC8950EM with dual optional10 Gigabit Ethernet
uplinks. The two models provide fully non-blocking performance to fulfill
the most network demands for voice and video streaming. Optional
10GBASE-XFP10 transceivers can support up to 40km for fiber uplinks.

The SMC8900 series provides two stacking ports for hardware stacking
up to 320Gbps throughput. Any combination of SMC8900 series units
can be stacked up to 8 units highor to a maximum of 400 ports. The
stack acts as a single switching unit that is managed by a master switch,
elected from one of the member switches. The master switch

tables. A working stack can add new members or delete old ones
without service interruption.

High Availability

With IEEE 802.1w Rapid Spanning Tree Protocol, the SMC8900 series
provides a loop free network and redundant links to the core network
with rapid convergence less than 2 second. IEEE 802.1s Multiple
Spanning Tree Protocol allows a spanning-tree instance per VLAN, for
Layer 2 load sharing on redundant links.

The SMC8900 series supports IEEE 802.3ad Link Aggregation Control
Protocol (LACP). It increases bandwidth by automatically aggregating
several physical links together as a logical trunk and offers load
balancing and fault tolerance for uplink connections.

Adding Optional Redundant Power Supply ensures that the SMC8900
series delivers the stable and redundant power support for today’s high­availability, mission-critical environments.

Enhanced Security

The SMC8900 series provides enhanced security features for
connectivity and access control, including ACLs, authentication and
port-level security with IEEE 802.1X. Access Control Lists (ACLs) can
be used to restrict access to sensitive network resources by denying
packets based on L2/L3/L4 headers. SSH and RADIUS authentication
protect data communication and ensure data privacy. IEEE 802.1X
port-based access control ensures dynamic, port-based security and
user authentication for network access

IP source guard prevents a malicious user from spoofing or taking over
another user's IP address by creating a binding table between client's

Simplified Management

For IP multicast traffic, the SMC8900 series enables IGMP snooping to
provide fast client joins and leaves of multicast streams. It prevents
flooding of IP multicast traffic, and limits bandwidth intensive video
traffic to only the subscribers.

The SMC8900 series supports IPv6 management functions in
SNMP/HTTP/Telnet/TFTP/ICMP, SSH, RADIUS/TACACS+
authentication and IPv6 QoS remapping when connecting to the switch
or stack.

The SMC8900 series can be managed through By industry standard
Command Line Interface (CLI) which provides a common industry look
and feel to reduce training and operating costs. It also provides easy-of
use Web GUI interface through a standard web browser.

With four groups of RMON, the SMC8900 series can easily backup and
restore Firmware and configuration files via TFTP.

Comprehensive QoS

The SMC8900 series offers advance QoS for marking, classification,
and scheduling to deliver best-in-class performance for data, voice, and
video traffic at wire speed. 8 egress queues per port enable
differentiated management of up to 8 traffic types across the stack.
Traffic is prioritized according to 802.1p, DSCP, IP precedence and
TCP/UDP port number to provide optimal performance to real-time
applications. Weight Round Robin (WRR) and strict priority ensure
differential prioritization of packet flows and avoid congestion of ingress
and egress queues.

With bidirectional rate-limiting, per port or traffic class, the SMC8900
series preserves network bandwidth and allows full control of network
resources.

Advanced IPv6 and IPv4 Routing

The SMC8900 series supports hardware based IPv6 and IPv4 routing
hardware for maximum performance. It provides seamless migration
path from IPv4 to IPv6 for future network upgrades and investment
protection.

Advanced routing protocols such as RIP and OSPF provide dynamic
routing by exchanging routing information with other Layer 3 switches
or routers. Multicast routing is supported under independent multicast
protocol, including PIM-DM*, and PIM-SM*. DVMRP* is also supported
to interconnect two multicast-enabled networks across non-multicast
networks. VRRP prevents your system from failing by dynamically
backing up multiple L3 switches for routing.

Features

RFC 2819 RMON MIB

RFC 2819 RMON MIB

Physical Ports Management

20 or 44 RJ-45 10/100/1000Base-T ports
4 Combo G (RJ-45/SFP) ports
2 stacking ports on the rear panel
2 optional I/O Slots for 10G uplink
1 RJ-45 console port
1 Redundant Power Supply Connector

Performance

Switching Capacity: 88Gbps/136Gbps
Forwarding Rate: 65.5Mpps/101.2Mpps
MAC Address Table Size: 16K
Packet Buffer Size: 2MB/4MB

L2 Features

Auto-negotiation for port speed and duplex mode
Flow Control: IEEE 802.3x & Back-Pressure
Spanning Tree Protocol:

IEEE 802.1D Spanning Tree Protocol (STP)
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP)

VLANs:

 Support 4K IEEE 802.11Q VLANs, port-based VLANs, GVRP
 Private VLAN

Link Aggregation:

Static Trunk, IEEE 802.3ad Link Aggregation Control Protocol
Trunk groups: 8
Trunk links: 2~8 for Gigabit Ethernet port
Trunk links: 2~4 for 10 Gigabit Ethernet port

IGMP Snooping: IGMP v1 , v2 and v3* snooping and IGMP queries

L3 Features

2K IP Address entries
512 static routes
ARP
Multi-netting, Super-netting (CIDR)
RIPv1, RIPv2
OSPF
DVMRP*, PIM-DM* , PIM-SM*
VRRP
IPv6 hardware IP routing, future firmware upgrade
Policy based routing
DHCP/BootP relay, DHCP server

QoS Features

Priority Queues: 8 hardware queues per port
Traffic classification based on IEEE 802.1p CoS, IP Precedence, DSCP,
TCP/UDP port number, Access Control List, Marking
DiffServ
Supports WRR and Strict Priority
Port Rate Limiting

Security

Optional Accessories

Port Security
IP Source Guard*
Supports IEEE 802.1X port-based and MAC based access control
IP filtering configuration for management interface (SNMP, Telnet, Web)
RADIUS authentication
Access Control List
SSH v2
HTTPS/SSL

Switch Management:

CLI via console port or Telnet
WEB management
SNMP v1, v2c, v3
IGMP snooping (v1/v2)

Firmware & Configuration:

Dual firmware images
Firmware upgrade via TFTP/FTP/Xmodem
Multiple configuration files

Configuration file upload/download via TFTP/FTP server
Supports RMON (groups 1, 2, 3 and 9)
Supports BOOTP, DHCP for IP address assignment
DHCP Snooping*
DHCP option 82*
Supports SNTP
Supports Event/Error log/ System log
IPv6:
SNMP/HTTP/Telnet/SSH/ICMP/RADIUS/SSH/SMTP/ACL/Dual
Stack/Neighbor discover/ DSCP remapping CoS/System log/DNS
resolver/TFTP/Remote Ping

SNMP Standards

RFC 1907 SNMPv2-MIB (MIB-II)
RFC 2011 IP-MIB (MIB-II)
RFC 2012 TCP-MIB (MIB-II)
RFC 2013 UDP-MIB (MIB-II)
IEEE 802.1X IEEE8021-PAE-MIB
RFC 1493 Bridge MIB
RFC 2863 IF-MIB

RFC 2618 RADIUS MIB
RFC 2665 Etherlike MIB
RFC 2737 Entity MIB
RFC 2674 P-bridge, Q-bridge
V-Bridge MIB
RFC 3036 MAU MIB
RFC 1612 DNS Reslover MIB
RFC 3411 SNMP FrameWork
RFC 3412 SNMP MPD MIB
RFC 3413 SNMP Target MIB, SNMP Notify MIB
RFC 3415 SNMP View-Based ACM MIB
SNMP Trap Supported:

RFC 1215, 1907, 2863, 1493, 1757, 2819
Private MIB

Standards & Compliance

IEEE 802.1D (STP)
IEEE 802.1p (Cos)
IEEE 802.1Q (VLANs)
IEEE 802.1w Rapid Reconfiguration Spanning Tree
IEEE 802.2 (LLC)
IEEE 802.3 10Base-T
IEEE 802.3u 100BASE-TX and 100BASE-FX
IEEE 802.3x flow control support
IEEE 802.3z (1000Base-SX/LX)
IEEE 802.3ab (1000Base-TX)
IEEE 802.3ac (VLAN tag)
IEEE 802.3ad (Link Aggregation)
IEEE 802.1Q (VLANs)