Cisco Cisco SG200-26P 26-port Gigabit PoE Smart Switch
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Release Notes for 200, 300, 500, and ESW2 Series Switches Firmware Version 1.4.0
Release Notes
•
Spanning Tree Loopback detection – When spanning tree is enabled and
discover a loopback (a port that sent spanning tree packet received its own
packet from the same port), it shutdown this port.
discover a loopback (a port that sent spanning tree packet received its own
packet from the same port), it shutdown this port.
•
802.1X Open Access – Allows access to the network even if the Radius
server response is failure. Accounting of users (Radius/TACACS+ start/
stop) is enabled and allows the administrator to review the list of connected
devices.
server response is failure. Accounting of users (Radius/TACACS+ start/
stop) is enabled and allows the administrator to review the list of connected
devices.
•
ACE logging – When traffic is permitted or denied due to ACE match,
display hit per interface and generation of syslog messages.
display hit per interface and generation of syslog messages.
•
Multicast Routing based on IGMP/MLD Proxy – Allows simple replication of
multicast traffic without need to support complicated multicast routing
protocols such as Protocol Independent Multicast (PIM) or Distance Vector
Multicast Routing Protocol (DVMRP). Including support for IGMP/MLD router
on downstream interfaces (SG500X and SG500XG product lines)
multicast traffic without need to support complicated multicast routing
protocols such as Protocol Independent Multicast (PIM) or Distance Vector
Multicast Routing Protocol (DVMRP). Including support for IGMP/MLD router
on downstream interfaces (SG500X and SG500XG product lines)
•
MLD querier – Used in the absence of a multicast router in the network.
•
AAA authentication – Added a control for authorization so the user can
decide whether to do authentication-only or authentication + authorization.
When upgrading from previous versions, the default becomes
authentication-only.
decide whether to do authentication-only or authentication + authorization.
When upgrading from previous versions, the default becomes
authentication-only.
•
First Hop Security enhancements - Added the following:
-
IPv6 Source Guard
-
Destination Guard
-
Static/Dynamic neighbor binding integrity
-
Prefix Validation
Change in Flash File System
In versions 1.3.5 and later, the Flash file system has been upgraded. This has
implications when upgrading from previous releases to version 1.3.5, and when
downgrading from 1.3.5 or later to previous versions as described below.
implications when upgrading from previous releases to version 1.3.5, and when
downgrading from 1.3.5 or later to previous versions as described below.