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Home > Hardware Management > Firmware > Cisco IOS v.12.1(20)EW - Basic Layer 3 3DES

Cisco IOS v.12.1(20)EW - Basic Layer 3 3DES

Firmware - Complete Product

Cisco IOS v.12.1(20)EW - Basic Layer 3 3DES
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Cisco IOS v.12.1(20)EW - Basic Layer 3 3DES
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Item No.  274903
Mfg Part No.  S4KL3K2-12120EW=
Product Condition:  New
Manufacturer:  Cisco

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30 Day Return Policy

Highlights for Cisco IOS v.12.1(20)EW - Basic Layer 3 3DES
  • License Type:Complete Product

Marketing Information

Cisco IOS Software Release 12.1 consolidates the advanced technology introduced in 1999 via Cisco IOS Software Early Deployment (ED) releases. It includes feature enhancements in the areas of voice, security, virtual private networking (VPN), quality of service (QoS), Multiprotocol Label Switching (MPLS), and multicast, as well as significant improvements in quality as a result of continuous, dedicated testing.

General Information

  • Manufacturer: Cisco Systems, Inc
  • Manufacturer Part Number: S4KL3K2-12120EW=
  • Manufacturer Website Address: www.cisco.com
  • Product Name: IOS v.12.1(20)EW - Basic Layer 3 3DES
  • Product Type: Software
  • Brand Name: Cisco
  • Product Information

  • Software Sub Type: Firmware
  • Software Name: IOS v.12.1(20)EW - Basic Layer 3 3DES - Complete Product
  • Features:
  • 8-Way CEF Load Balancing
  • AAA Server Group
  • AAA Server Groups Based on DNIS
  • Ability to limit console and telnet login attempts
  • Address Resolution Protocol (ARP)
  • AppleTalk 1 and 2
  • Broadcast/Multicast Suppression
  • CDP (Cisco Discovery Protocol) Version 2
  • CEF/dCEF - Cisco Express Forwarding
  • CGMP - Cisco Group Management Protocol
  • Cisco IP Phone Support
  • CiscoView Autonomous Device Manager (ADP)
  • Class-Based Marking
  • Class-Based Policing
  • Class-Based Shaping
  • Clear Counters Per Port
  • CLI String Search
  • DHCP Relay Agent Support for Unnumbered Interfaces
  • Dynamic ARP Inspection
  • Dynamic Buffer Limiting (Active Queue Management)
  • Dynamic Trunking Protocol (DTP)
  • ErrDisable Reactivation Per Port
  • ErrDisable timeout
  • EtherChannel
  • EtherChannel - Flexible PAgP
  • EtherChannel Enhancements - Single Port Channel
  • Etherchannel Guard
  • EtherChannel Layer 4 Distribution
  • Fast EtherChannel (FEC)
  • Fast-Switched Policy Routing
  • FTP Support for Downloading Software Images
  • Generic Routing Encapsulation (GRE)
  • HSRP - Hot Standby Router Protocol
  • IEEE 802.1Q VLAN Trunking
  • IEEE 802.1s VLAN Multiple Spanning Trees
  • IEEE 802.1t
  • IEEE 802.1W Spanning Tree Rapid Reconfiguration
  • IEEE 802.1X Port-Based Authentication
  • IEEE 802.3ad Link Aggregation (LACP)
  • IGMP Fast Leave
  • IGMP Version 1
  • IGMP Version 2
  • IGMP Version 3
  • IGMPv3 Snooping: Full Support
  • Inline Power Management
  • Interface Index Persistence
  • IP Named Access Control List
  • IP Routing
  • IP Source Guard
  • IP Summary Address for RIPv2
  • IPX Named Access Lists
  • Local Proxy ARP
  • Message Banners for AAA Authentication
  • Modular QoS CLI (MQC)
  • Multi-VRF Support (VRF lite)
  • Multicast Source Discovery Protocol (MSDP)
  • Network Time Protocol (NTP)
  • Novell IPX
  • PIM Version 1
  • PIM Version 2
  • Policy-Based Routing (PBR)
  • Port Security
  • Pragmatic General Multicast (PGM)
  • Private VLAN Trunk Ports
  • Private VLANs
  • QoS Packet Marking
  • RADIUS
  • Rapid-Per-VLAN-Spanning Tree (Rapid-PVST)
  • Reduced MAC Address Usage
  • Remote SPAN (RSPAN)
  • RIP
  • RMON events and alarms
  • RTP Header Compression
  • Sampled NetFlow
  • Secure Shell SSH Version 1 Integrated Client
  • Secure Shell SSH Version 1 Server Support
  • Secure Shell SSH Version 2 Server Support
  • SNMP (Simple Network Management Protocol)
  • SNMP Manager
  • SNMPv3 (SNMP Version 3)
  • Span Enhancement: Packet Type and Address Type Filtering
  • Spanning Tree Protocol (STP)
  • Spanning Tree Protocol (STP) - Backbone Fast Convergence
  • Spanning Tree Protocol (STP) - Loop Guard
  • Spanning Tree Protocol (STP) - Portfast
  • Spanning Tree Protocol (STP) - PortFast BPDU Filtering
  • Spanning Tree Protocol (STP) - Portfast BPDU Guard
  • Spanning Tree Protocol (STP) - Portfast support for trunks
  • Spanning Tree Protocol (STP) - Root Guard
  • Spanning Tree Protocol (STP) - Uplink Fast Convergence
  • Spanning Tree Protocol (STP) - Uplink Load Balancing
  • Spanning Tree Protocol (STP) Extension
  • Standard IP Access List Logging
  • Stub IP Multicast Routing
  • Support for 4096 VLAN IDs
  • Switch Port Analyzer (SPAN)
  • Switch Port Analyzer (SPAN) - CPU Source
  • TACACS+
  • Time-Based Access Lists Using Time Ranges
  • Transceiver Optical Monitoring
  • Distribution Media/Method: Flash Memory
  • Software Main Type: Firmware
  • License Information

  • License Type: Complete Product
  • Miscellaneous

    Additional Information

    Releases:

  • 12.1(20)EW
  • 12.1(20)EW1
  • 12.1(20)EW3
  • Compatibility

    Platforms:

  • CAT4500-SUP2-PLUS
  • CAT4500-SUP3
  • CAT4500-SUP4
  • Physical Characteristics

    Warranty

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    Cisco IOS v.12.1(20)EW - Basic Layer 3 3DES

    Firmware - Complete Product
    $209.32
     



     
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