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New Member

3750 - 12.2(25) or 12.2(35)

I've noticed that IOS version 12.2(35) has been poping on and off the early release list for the 3750. Does anyone know what the major differences between 12.2(25)SEB4 and 12.2(35)SE2?? Why would I choose one over the other?


Re: 3750 - 12.2(25) or 12.2(35)

New Member

Re: 3750 - 12.2(25) or 12.2(35)

good luck with that..

that utility is so messed up..

it doesn't even show me 12.2.35 se2

I even opened a tac call with a screen shot of the 3550 drill down showing me 2960 code and the tac engineer was going.. " I don't see the problem"

I gave up on tac, the guy was absolutely clueless... if someone from Cisco actually wants to see the problem, its already attached here somewhere, just search my name..

meanwhile back at the farm, I put 12.2.35 se on the switches and it seems to be running fine so far.


Re: 3750 - 12.2(25) or 12.2(35)


Are you having nightmares about Cisco's Feature Navigator? :-) Relax, the above reference is to the release notes.

New Member

Re: 3750 - 12.2(25) or 12.2(35)



I would suggest you to go in for 12.2(25) SEE2

as it has been there for good amount of time and its a stable image where as 12.2(35)SE2 has just released couple of days back so it will not be an ideal image to go in for.

Here are the feature differences as requested by you

Unique Features in 12.2( 35) SE2 ADVANCE IP SERVICES

Access Switch Device Manager (SDM) Template

Authentication Proxy Accounting for HTTP

Configuration Change Notification and Logging

Cross-Stack Link Aggregation Control Protocol

DHCP - Configurable DHCP Client

Diagnotics Options on bootup

Enhanced Tracking Support

Fast Stack Image Upgrade

Firewall Authentication Proxy

Flex Link Bi-directional Fast Convergence

Flex Links Interface Preemption

IEEE 802.1Q Tunneling

IEEE 802.1s - Multiple Spanning Tree (MST) Standard Compliance

IEEE 802.1x - Auth Fail Open

IEEE 802.1x - Auth Fail VLAN

IEEE 802.1x - Wake on LAN Support

IEEE 802.1X Multi-Domain Authentication

IGMP Fast Leave

IP Phone Enhancement - PHY Loop Detection

IPv6 Routing: Route Redistribution

IPv6 Security: Secure Shell SSH support over IPv6

IPv6 Services: Cisco Discovery Protocol (CDP) - IPv6 Address Family Support for Neighbor Information

MAC Authentication Bypass

MLD Snooping

NAC - L2 IEEE 802.1x


NAC - L2 IP with Auth Fail Open



NSF Awareness - BGP

NSF Awareness - OSPF

Per Port Per VLAN Policing

Secure Copy (SCP)

Secure Shell SSH Version 2 Server Support

SRR (Shaped Round Robin)

Switching Database Manager (SDM)

UDI - Unique Device Identifier


New Member

Re: 3750 - 12.2(25) or 12.2(35)

Continued Message

Unique features in 12.2(25) SEB4 ADVANCE IP SERVICES

CEF/dCEF - Cisco Express Forwarding

Configurable IGMP Leave Timer

Dynamic ARP Inspection

EIGRP Stub Routing

Enhanced IGRP (EIGRP)

HTTP Security

IGMP Querier

IGMP Snooping

IGMP Throttling

IP Enhanced IGRP Route Authentication

MPLS VPN support for EIGRP between Provider Edge (PE) and Customer Edge (CE)

NSF Awareness - EIGRP


Commom Features in Both ADVANCE IP SERVICES

AAA Server Group

AAA Server Group Enhancements

Ability to limit console and telnet login attempts

ACL - Improved Merging Algorithm

ACL Sequence Numbering

Address Resolution Protocol (ARP)

ARP Optimization

AutoInstall Using DHCP for LAN Interfaces

AutoQoS - VoIP



BGP 4 Multipath Support

BGP 4 Prefix Filter and In-bound Route Maps

BGP 4 Soft Config

BGP Conditional Route Injection

BGP Configuration Using Peer Templates

BGP Convergence Optimization

BGP Cost Community

BGP Dynamic Update Peer-Groups

BGP Hide Local-Autonomous System

BGP Hybrid CLI Support

BGP Increased Support of Numbered as-path Access Lists to 500

BGP Link Bandwidth

BGP Multipath Load Sharing for Both eBGP and iBGP in an MPLS-VPN

BGP Named Community Lists

BGP Next Hop Propagation

BGP Policy Accounting

BGP Prefix-Based Outbound Route Filtering

BGP Restart Neighbor Session After max-prefix Continued in next reply

New Member

Re: 3750 - 12.2(25) or 12.2(35)

Continued Message

BGP Route-Map Continue

BGP Route-Map Policy List Support

BGP Soft Reset

Broadcast/Multicast Suppression

CDP (Cisco Discovery Protocol) Version 2

CEFv6/dCEFv6 - Cisco Express Forwarding

CGMP - Cisco Group Management Protocol

Cisco StackWise Technology

Class Based Ethernet CoS Matching & Marking (802.1p & ISL CoS)

Clear Counters Per Port

CLI String Search

Commented IP Access List Entries

DHCP Server

DHCP Snooping

Dynamic Trunking Protocol (DTP)

Encrypted Kerberized Telnet

Enhanced Password Security

ErrDisable Reactivation Per Port

ErrDisable timeout


EtherChannel - Flexible PAgP

EtherChannel Enhancement - Single Port Channel

Etherchannel Guard

Fallback Bridging

Fast-Switched Policy Routing

Flex Links

FTP Support for Downloading Software Images

HSRP - Hot Standby Router Protocol

HSRP - Hot Standby Router Protocol and IPSec

HSRP support for ICMP Redirects

HSRP support for MPLS VPNs

IEEE 802.1p Support

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 - VLAN Assignment

IEEE 802.1x Authenticator

IEEE 802.1x RADIUS Accounting

IEEE 802.1x with Port Security

IEEE 802.3ad Link Aggregation (LACP)

IEEE 802.3af Power over Ethernet

IEEE 802.3x Flow Control

IGMP State Limit

IGMP Version 1

IGMP Version 2

Interface Range Specification

IP Multicast Load Splitting across Equal-Cost Paths

IP Multicast over 1483 VC Mux Encapsulation on ARMII

IP Named Access Control List

IP Routing

IP Source Guard

IP Summary Address for RIPv2

IPv6 (Internet Protocol Version 6)

IPv6 Data Link: VLANs using Cisco Inter-Switch Link (ISL)

IPv6 Data Link: VLANs using IEEE 802.1Q Encapsulation

IPv6 MTU Path Discovery

IPv6 Neighbor Discovery

IPv6 Routing: OSPF for IPv6 (OSPFv3)

IPv6 Routing: RIP for IPv6 (RIPng)

IPv6 Routing: Static Routing

IPv6 Services: AAAA DNS Lookups over an IPv4 Transport

IPv6 Services: DNS Lookups over an IPv6

See next reply

New Member

Re: 3750 - 12.2(25) or 12.2(35)

Continued message


IPv6 Stateless Auto-configuration

IPv6 Switching: CEF/dCEF Support

IPv6: ICMPv6 Redirect

IPv6: Neighbor Discovery Duplicate Address Detection


Jumbo Frames

Kerberos V client support

L2PT - Layer 2 Protocol Tunneling

Message Banners for AAA Authentication

MPLS VPN - Inter-Autonomous System Support


Multicast BGP (MBGP)

Multicast Etherchannel Load Balancing

Multicast Source Discovery Protocol (MSDP)

Multicast Subsecond Convergence

Network Time Protocol (NTP)


OSPF Forwarding Address Suppression in Translated Type-5 LSAs

OSPF Inbound Filtering using Route Maps with a Distribute List

OSPF Not-So-Stubby Areas (NSSA)

OSPF Stub Router Advertisement

Packet-Based Storm Control

Parse Bookmarks

Parser Cache

Performance Enhancements for IOS ACL

PIM Dense Mode State Refresh

PIM MIB Extension for IP Multicast

PIM Multicast Scalability

PIM Version 1

PIM Version 2

Policy-Based Routing (PBR)

Port Security

Private VLANs

QoS Policy Propagation via Border Gateway Protocol (QPPB)

QoS Priority Percentage CLI Support


Rapid-Per-VLAN-Spanning Tree (Rapid-PVST)

Reduced MAC Address Usage



RMON events and alarms

Secure Shell SSH Version 1 Integrated Client

Secure Shell SSH Version 1 Server Support

Smart Port

SNMP (Simple Network Management Protocol)


SNMPv3 (SNMP Version 3)

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

STP Syslog Messages

Stub IP Multicast Routing

Switch Port Analyzer (SPAN)

Switch Provisioning for Stackwise technology

Tacacs SENDAUTH function

Tacacs Single Connection


Time-Based Access Lists Using Time Ranges

Transparent Bridging

Trusted boundary (extended trust for CDP devices)

Tunnel Type of Service (TOS)

Unicast Mac Filtering

UniDirectional Link Detection (UDLD)

Virtual Profile CEF Switched

VLAN Access Control List (VACL)

Weighted Tail Drop (WTD)


Deepak Ahuja

Cisco TAC

New Member

Re: 3750 - 12.2(25) or 12.2(35)

I should have mentioned that I'm running IPBASE code and the purpose of this exercise is to upgrade code to conform with the DST changes happening on March 7th 2007. Does that change anyone's responses?

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