Dell PowerConnect 8100 Release Notes - Page 19

Spanning Tree Changes, User Configurable CLI Banners, Captive Portal, VLAN Membership, Native VLAN

Get Dell PowerConnect 8100 PDF manuals and user guides View all Dell PowerConnect 8100 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 19 highlights

PowerConnect 8132/8164/8132F/8164F/8024/8024F/M8024/M8024-k/ M6220/M6348/7024/7048/7024P/7048P/7024F/7048R/7048R-RA Release Notes  Spanning Tree Changes Administrators may assign more than 1024 VLANs to MSTP instances. Only VLANs that are configured on the switch will forward traffic. The PowerConnect switches implements the 802.1Q-2005 standard which builds on 802.1D-2004. 802.1D-2004 incorporates the 802.1t, 802.1w and 802.1s revisions. Port path costs are calculated based on the interface speed as shown below and are dynamically recalculated on interface activation and link speed changes. External Port Path Cost values (Port Path Cost in 17.14 of 802.1D-2004) are applicable in STP, RSTP, and MST modes (Ref. Table 17-3 802.1D-2004). Use the spanning-tree cost command in interface mode to set the external port path cost. Link Speed 10 Gb/s 1 Gb/s 100 Mb/s 10 Mb/s 1 Mb/s Default Value 2000 20000 200000 2000000 20000000 Internal Port Path Cost values are specific to MST mode only (Ref. Table 13-3 802.1Q-2005). Use the spanning-tree mst cost command in interface mode to set the internal port path cost. Link Speed 10 Gb/s 1 Gb/s 100 Mb/s 10 Mb/s 1 Mb/s Default Value 2000 20000 200000 2000000 20000000  User Configurable CLI Banners Administrators may configure banners for the following: MOTD, login, and exec. The banners may consist of multiple lines of text. Each new line will consume an extra two characters (CR/LF) that count against the maximum length banner that can be configured.  Captive Portal Captive portal has been extended to support user logout and localization.  802.1Q The following changes have been made to the operation of VLANs. VLAN Membership: By default, trunk ports participate in all VLANs. VLANs created after a trunk port is created are added to all trunk ports. VLANs deleted are removed from all trunk ports. The operator may configure a trunk port to explicitly disallow certain VLANs. Native VLAN Configuration on Trunk Ports: It is now possible to configure the native VLAN on a port in trunk mode. Trunk mode ports will accept untagged frames but will always transmit tagged frames. It is also possible to configure a trunk port to drop untagged frames by filtering on the native VLAN, e.g. by using the switchport trunk allowed vlan remove command. System Firmware Version 5.1.0.1 Page 17

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
PowerConnect 8132/8164/8132F/8164F/8024/8024F/M8024/M8024-k/
M6220/M6348/7024/7048/7024P/7048P/7024F/7048R/7048R-RA
Release Notes
System Firmware Version 5.1.0.1
Page 17
Spanning Tree Changes
Administrators may assign more than 1024 VLANs to MSTP instances. Only VLANs that are configured on the
switch will forward traffic.
The PowerConnect switches implements the 802.1Q-2005 standard which builds on 802.1D-2004. 802.1D-2004
incorporates the 802.1t, 802.1w and 802.1s revisions.
Port path costs are calculated based on the interface speed as
shown below and are dynamically recalculated on interface activation and link speed changes.
External Port Path Cost values (Port Path Cost in 17.14 of 802.1D-2004) are applicable in STP, RSTP, and MST modes
(Ref. Table 17-3 802.1D-2004).
Use the
spanning-tree cost
command in interface mode to set the external port path
cost.
Link Speed
Default Value
10 Gb/s
2000
1 Gb/s
20000
100 Mb/s
200000
10 Mb/s
2000000
1 Mb/s
20000000
Internal Port Path Cost values are specific to MST mode only (Ref. Table 13-3 802.1Q-2005).
Use the
spanning-tree
mst <instance> cost
command in interface mode to set the internal port path cost.
Link Speed
Default Value
10 Gb/s
2000
1 Gb/s
20000
100 Mb/s
200000
10 Mb/s
2000000
1 Mb/s
20000000
User Configurable CLI Banners
Administrators may configure banners for the following: MOTD, login, and exec. The banners may consist of multiple
lines of text. Each new line will consume an extra two characters (CR/LF) that count against the maximum length
banner that can be configured.
Captive Portal
Captive portal has been extended to support user logout and localization.
802.1Q
The following changes have been made to the operation of VLANs.
VLAN Membership:
By default, trunk ports participate in all VLANs. VLANs created after a trunk port is created are added to all trunk
ports. VLANs deleted are removed from all trunk ports. The operator may configure a trunk port to explicitly disallow
certain VLANs.
Native VLAN Configuration on Trunk Ports:
It is now possible to configure the native VLAN on a port in trunk mode. Trunk mode ports will accept untagged
frames but will always transmit tagged frames. It is also possible to configure a trunk port to drop untagged frames by
filtering on the native VLAN, e.g. by using the
switchport trunk allowed vlan remove
command.