ZyXEL Communications GS1920-48HP Betriebsanleitung

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Zyxel GS1920 series V4.50(AAxx.2)C0

Release Note/Manual Supplement

Date: Feb. 27, 2018

This document describes the features in the GS1920 series product for its

V4.50(AAxx.2)C0 release.

Support Models:

Zyxel GS1920-48HP

Zyxel GS1920-48

Zyxel GS1920-24HP

Zyxel GS1920-24

Version:

Model

Firmware Version

Boot Version

Zyxel GS1920-48HP

V4.50(AAOA.2) | 02/27/2018

V1.00 | 11/15/2013

Zyxel GS1920-48

V4.50(AANZ.2) | 02/27/2018

V1.00 | 11/15/2013

Zyxel GS1920-24HP

V4.50(AAOC.2) | 02/27/2018

V1.00 | 03/21/2014

Zyxel GS1920-24

V4.50(AAOB.2) | 02/27/2018

V1.00 | 03/21/2014

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Enhanced Features:

V4.50(AAxx.2)C0:

1. NTP Server supports DNS format

2. Enhanced dual image resilience

3. SHA2

4. Show IPv6 socket

5. Logout all current user access after changing the device management IP

6. Display port utilization

7. Use [Ctrl+C] to escape when executing “show running config, show log”

8. Time sync (NTP) over IPv6

9. Syslog setup for IPv6 and UDP port

10. ZDP v1.8.3

11. Time stamp for save configuration

12. POE default mode change to consumption mode, and the default config will

show consumption mode setting.(POE model only)

13. Web login warning page

14. Smart fan (designed to automatically adjust speed based on device

temperature)

15. Custom Default configuration

16. Enhanced GUI with new Zyxel logo

17. Avoid multicast group cannot be added while mac collision happens

Bug Fix:

V4.50(AAxx.2)C0:

1. eITS#151200455/ 170200710

[LLDP] particular Cisco IP phone may release IP (DHCP mode) after every 180

seconds.

2. eITS#151201303

[SNMP] SNMP GETBULK produces incorrect results when max-repetition is set

greater than 55.

3. eITS#160101255

[LACP] Fail to disable LACP if disable trunk first.

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4. eITS#160300698

[VLAN] Partial configuration loss occurs after configuring private VLAN via web GUI

and rebooting switch.

5. eITS#160500852

[MGMT] GS1920-24HP can upload successfully GS2210’s firmware, which will cause

GS1920-24HP crash and never boot up properly after rebooting.

6. eITS#160700103

[Log] Displayed port speed value is always 0 KB/s for both TX and RX.

7. eITS#161100122

[MGMT] Switch does not check the password with illegal characters.

8. eITS#170100698

[RSTP] The switch cannot auto adjust RSTP path cost according to the port speed.

9. eITS#170300312

[MGMT] Change from DHCP to static IP and management VLAN in the same time

will lose the static IP setting after DHCP lease time.

10. eITS#170300428

[PING] Switch has high ping latency periodically due to the routine runtime task.

11. eITS#170500473

[MGMT] Prevent unexpected reboot caused by Avast antivirus software.

12. eITS#170500863

[SYSTEM] Switch may encounter unexpectedly reboot under a large IP network

environment.

13. eITS#170700931

[ACL] The permitted traffic will be denied when users set more than 64 classifiers.

14. eITS#171200272

[IPSG/Port Security] Client traffic is unexpectedly discarded after MAC address

aging time when IPSG and port security are enabled.

15. eITS# 180100999

[Maintenance] Switch may miss configuration if upgrades to new firmware.

16. eITS#180200048

[WEB] Web GUI may display Syntax error when restoring configuration.

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Known Issue:

1. [Bandwidth Control] Ingress rate limit of TCP traffic might have inaccuracy with

some criteria.

2. [Security] Fake IP traffic cannot be filtered when a static IP binding existed.

3. [DIAG] The cable length resolution of Cable Diagnostic is about +-15 meter.

4. [DIAG] The fault distance of Cable Diagnostic is less than 1 meter without cable

inserted.

5. [MGMT] GS1920 is cluster manager and the cluster member won’t upgrade

firmware via FTP if firmware size is over than 4.8MB.

Limitation of Settings:

1. 802.1Q Static VLANs 1K

2. Static MAC forwarding entry 256

3. MAC filtering entry 256

4. Cluster member 24

5. Protocol based VLAN entries per port 7

6. Port-security max address-limit number 16K

7. Syslog server entry 4

8. IP source guard entry 512

9. IP subnet based VLAN entry 16

10. DHCP snooping binding table 16K

11. Multicast group 1024

12. ACL 256

13. DHCP Entry 16

14. Trunk groups 14(24 ports)/ 16(48 ports)

15. Per trunk group port number 8

16. MSTP instance 0-15

17. MAC-based VLAN 28(24 ports)/ 50(48 ports)

18. Voice VLAN OUI entry 6

19. ZON neighbor per-port maximum clients 10

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Change History:

V4.50(AAxx.2) | 02/27/2018

V4.30(AAxx.0) | 09/16/2015

V4.10(AAxx.0) | 12/25/2013

Firmware Upgrade:

The GS1920 series use FTP to upgrade firmware in run-time through its built-in FTP server.

You can use any FTP client (for example, ftp.exe in Windows) to upgrade GS1920 series.

The upgrade procedure is as follows:

C:\> ftp <GS1920 series IP address>

User : admin

Password: 1234

230 Logged in

ftp> put 450AAxx1C0.bin ras-0

ftp> bye

Where

User name: the management user name, admin by default.

Password: the management password, 1234 by default.

450AAxx1C0.bin: the name of firmware file you want to upgrade.

ras-0: the internal firmware name in GS1920 series (store at first flash).

ras-1: the internal firmware name in GS1920 series (store at second flash).

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Reset switch to factory-default setting:

When users forget the login profile or password, they're unable to login the switch

again. The only way to login to the switch is to reset the switch to factory-default and

use the default user name (admin) and password (1234) to login.

Procedure to reset switch to factory-default login profile:

1. Make sure the SYS LED is steady green (not blinking). Use a pointed instrument

such as a pin to access the Reset button on the side of Switch as shown below.

Side Panel: GS1920-48

Side Panel: GS1920-24, GS1920-24HP, GS1920-48HP

2. Press the button for more than five seconds until SYS LED begins to blink and

then release it. Wait for the Switch to restart (the SYS LED will be steady green

again). This takes up to two minutes.

Note: If you want to access the Switch web configuration again, you may

change your IP address of your computer to be in the same subnet as that of

the default Switch IP address (192.168.1.1).

3. User can now login with default user-name and password.

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