DES-3500 Series Firmware Release Note



Firmware: 5.01.B60
Hardware: 
DES-3526:A1/A2/A3/A4G
DES-3526DC:A1/A2/A3G
DES-3550:A1/A2/A3/A4G /A5G
Date: Feb.5, 2009

Problem Resolved:
Fixed an error message display issue that during system boot up, an "Internal Power Fail" error message shows up in log and trap, while the internal power supply functions correctly. 


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Firmware: 5.01.B52
PROM: 5.00.009
Hardware: 
DES-3526:A1/A2/A3/A4G
DES-3526DC:A1/A2/A3G
DES-3550:A1/A2/A3/A4G /A5G
Date: Nov.13, 2008

Problem Resolved :
1.CPU utilization remains high while the traffic storm is released.
2.DHCP client sometimes can not get IP address from DHCP server while enabling   IP-MAC-Port binding feature.
3.When connecting DES-3550 Giga port to DGS-1224T Giga port and then reboot DGS-1224T, the link between the DES-3550 and DGS-1224T will down unless it must unplug and plug the UTP cable to recover.
4.Once the ACL is set to block contents from source IP to destination IP, after that if we configure DES-3526 Bandwidth control Rx rate from 1 to 99 Mbps, the ACL setting will fail. This is because the priority confliction between ACL and bandwidth control. The R5.1 FW adjusts the priority between the ACL and bandwidth control based on customer’s request.
5.When configuring both DES-3550’s Giga ports to 1000_Full and connect to each other (port49 connect port50). The Link status is always link down.
6.While connecting to DES-3526 via telnet and set the terminal line 20 ~80. Some problems occur in show ports description command: the "n" (next page) and "p" (previous page) can’t work correctly.
7.While executing DHCP auto configuration and reboot the device, the log-in screen shows up and all the auto configuration tasks will be held up until user press any key to continue the processes.
8.Fail in setting daylight saving time, user can’t set daylight saving time successfully.
9.The auto assign Access ID of the ACL rule can be configured via Web, but it can't be configured via CLI.
10.When there are dual image in the device, if user firstly select the image 2 as the boot up and delete the image 1, after switch reboot the device will change the original image 2 to be image 1. 

New features :

1. IP-MAC-Port Binding v3.3
2. DHCP Relay option 60/61
3. D-View Module support HP OV NNM v7.51 
4. 802.1Q-2005(STP Root Restriction)
5. Configurable auto MDI/MDIX function
6. Gratuitous ARP
7. Cable Diagnostics
8. "Show tech support" command
9. 802.1x sesssion timeout attribute
10. VLAN batch configuration
11. Time-based ACL
12. Add RFC2869 RADIUS extension standard for two attribute "Acct-Input-Gigawords & Acct-Output-Gigawords"
13. Password encryption
14. 802.1X Port-Based Access Control with Target VLAN behavior (Add ingress/egress bandwidth attribute and 802.1p priority attribute)
15. Multicast router traffic control
16. BPDU restriction
17. S/N display on UI
18. Keep static VLAN setting and IPIF while resetting system
19. DHCP local relay
20. ARP Spoofing Prevention

Note:
1.	After upgrading FW to R5.1, the original user accounts established in previous releases still work fine, but won’t be shown in configuration file. It’s because of the new feature “Password Encryption” takes effect. In R5.1, the newly added accounts will be visible in the configuration file while the password is protected by encryption. Meanwhile, the old accounts remain invisible and won’t be part of the configuration file. Thus, if user would like to upload the configuration file and download it to other devices, the old accounts won’t be ported into the target devices. In order to make the old accounts to be portable and visible in the configuration file, user needs to delete them and then re-establish the accounts in R5.1.
2.	While downgrading FW from R5.1 to previous release, all the configurations will be reset to default. Thus, user needs to backup configuration of previous release before upgrading to R5.1 if user may roll back the target devices to the previous release.