Firma Matzner Michael e.U.
:: Seite 3 von 5 :: Datenblatt zum Produkt Cisco Catalyst 6000 SUP2/MSFC2 IOS mit DC# 478333 ::
Den aktuellen Preis und Lagerstand finden Sie online auf http://www.diskontcomputer.com/detail.php?item=478333
Cisco Systems
All contents are Copyright © 1992--2001 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.
Page 3 of 5
Enhanced reflexive ACLS
support in hardware
Supervisor 2 uses the NetFlow table for dynamic reflexive access control list (ACL) entries;
this allows better ternary content addressable memory (TCAM) usage for other ACLs.
ARP throttling support in
hardware
Limits the rate at which packets reach the router for packets sent to a destination in a
connected network. Most of these packets are dropped; a small number are sent to the
router (rate limited). This can help prevent denial-of-service (DOS) attacks.
IP unicast RPF support in
hardware
The Cisco IOS Software unicast RPF feature is supported in hardware on the PFC2.
Sources and hosts that can be reached via multiple paths are forwarded to the MSFC2.
For ACL-based RPF checks, traffic that matches the RPF ACL is forwarded to the MSFC2.
WCCP support in
hardware
Web Cache Communication Protocol (WCCP) Layer 2 PFC Redirection with Supervisor
Engine 2 and PFC2. This capability allows directly connected Cisco Cache Engines to use
Layer 2 redirection, which is more efficient than Layer 3 redirection via generic routing
encapsulation (GRE) encapsulation. A directly connected Cache Engine can be configured
to negotiate use of the WCCP Layer 2 PFC Redirection feature.
Support for excess burst
in aggregate policing, and
the related support for
two markdown maps-for
normal and excess
out-of-profile
Support for a two-level policing mechanism that allows two markdown thresholds or one
markdown threshold and a drop threshold.
SSM, URD, and IGMP
Version 3 Lite
Source Specific Multicast (SSM) is an extension of the IP Multicast protocol. SSM enables a
receiving client, after it has learned about a particular multicast source through a directory
service, such as a Web server, to then receive content directly from the source, rather than
receiving it using a shared rendezvous point (RP) in PIM Sparse Mode.
To enable timely deployment of SSM services in the face of non-SSM-enabled receiver
applications or receiver host operating systems, Internet Group Management Protocol
Version 3 (IGMPv3) also provides URL Rendevous Directory (URD) as an interim solution to
signal source-specific membership:
URD is the designated transition solution for content providers that want to use
SSM-enabled receiver applications. URD enables existing applications to be SSM capable
without modifying any receiver host software (application nor operating system) provided
that the application is started via a Web browser. URD relies on the last-hop router towards
a SSM receiver host to intercept URLs from a Web server to detect the source address of
the SSM channel.
Because IGMPv3 standards are not yet final, customers can use SSM using IGMPv3 Lite.
IGMPv3 Lite includes software for hosts that provides a subset of proposed functions for
the IGMPv3 application programming interface (API) required to write SSM applications.
IOS Server Load
Balancing (ISLB) is
enhanced to work in the
distributed forwarding
model
ISLB is enhanced to work with dCEF.
Feature Description
(3 páginas)
(78 páginas)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentários a estes Manuais