Spanning tree, forwarding from from root, how?
Hello!
I have very simple, and I guess, stupid question.
I understand how switches choose forwarding ports by calculation cost to root.
But how path from root to other switches is calculated?
Let's say we have just two switches, connected by two 1G links.
One of switches is root, how it will find which por use as designated?
As I see on my hardware root uses both.
But if one of links is 1G and another 10G? How root will choose which port to use?
Thank you!
Yes, I think that link with less cost will be choosed.
But how? Is there any explanation how it works?
All manuals/examples I can find are about calculation path to root, to down from root.
Could you point me to manual with explanation how forwarding path is calculated down from root?
Thank you!
Similar Messages
-
Spanning tree STG from switch to switch
Does the STG need to match on all linked switches for VLANs to function properly using PVRST? It seems like whenever I notice they are not the same the VLANs that are not the same are not working as they should be.
Hello,
A couple of comments on this topic. As noted, the STP instance to VLAN number is locally significant and generally does not need to match between switches. One exception to this is for switches in a vLAG pair (similar to Cisco vPC). For a pair of switches sharing a common vLAG tier ID, the STP-instance-to-VLAN-number must match exactly, or unexpected blocking/discarding will occur (I have never seen this cause a loop, just unexpected blocking, and one way to see if this is the case is to use the command “show span block” and look for any interfaces blocking that should not be). Lenovo switches use an algorithm to assign an instance to a VLAN, and if you add VLANs in the same order on a pair of switches, those VLANs will get the same STP instance. But if you add VLANs in different order on each switch, then they might get a different instance assigned, and then would require manually adjustment on a vLAG pair. Again, this does not matter on non-vLAGed switches, and can be any instance, but as noted in a previous response, it is always a good idea to have them in sync between switches, just to prevent user confusion.
There is also a draft paper out for Lenovo switching best practices at the following link that covers a lot of such topics:
http://www.redbooks.ibm.com/abstracts/sg248245.html?Open
Thanks, Matt -
VLAN spanning-tree root and VLAN L3 SVI
I have a traditional core/access switches connected, Catalyst 4506 with 802.1Q uplink trunks to two core 6504-E switches. Spanning-tree roots for VLAN's were on core switch with the active HSRP/SVI. Shutdown HSRP/SVI on the cores and moved the SVI to the L3 access switches, but we left the spanning-tree root on the cores... Is this causing the clients/ports in the VLAN on the access switches to do a double/triple hop over the uplink for ingress/egress? Gig1/1 is the trunkport/uplink to the core, wanted to move L3 functions to the access switch to reduce spanning VLANs across the core network.
Current configuration : 253 bytes
interface Vlan196
description Tower I - 8th Floor VLAN
ip address 10.200.196.1 255.255.255.0
ip access-group 115 in
ip helper-address 164.103.160.150
ip helper-address 172.20.135.201
no ip redirects
no ip unreachables
ip pim sparse-mode
end
I0504506A8#sh spann
I0504506A8#sh spanning-tree vlan 196
VLAN0196
Spanning tree enabled protocol ieee
Root ID Priority 196
Address 6400.f1ee.c140
Cost 4
Port 1 (GigabitEthernet1/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 49348 (priority 49152 sys-id-ext 196)
Address 0015.f960.9ac0
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300
Interface Role Sts Cost Prio.Nbr Type
Gi1/1 Root FWD 4 128.1 P2p
Gi1/2 Altn BLK 4 128.2 P2pHi Tojackson, I guess this depends on how stuff is interconnecting. It's obvious gi1/1 is forwarding and gi1/2 is blocking. So from the furthest access switch, what path must it take to reach gi1/1? That is the number of hops involved for normal traffic.
Now, if you're concerned about a specific VLAN and you need gi1/2 forwarding to reduce travel time for other traffic, you may employ RPVST to have that specific VLAN and cost to go to gi1/2.
In some part of the network I support we have a pair of Cisco 7606 which feeds in to a 4507R and off the 4507R we have a ring of 2955 with even 10-12 L2 switches on the ring. The consequence of multiple layer 2 hops is not of much concern and our spanning tree stops with the 4507 since we're not concerned about broadcast storm on the routed interfaces on the 7600.
-Tom
Please mark answered for helpful posts -
Spanning tree root ports in back to back VPC
Ok so I have a question about back to back VPC configuration.
I have a back to back VPC from core to agg layer so that I have 2 logical switches in my path.
However I am seeing an issue on the agg layer. Traffic is traversing the VPC peerlink instead of being sent up to the core which is where the spanning-tree root is configured.
Po1 is my uplink from the agg
Po4 is my vpc peerlink on the Agg
Po1 Root FWD 200 128.4096 (vPC) P2p
Po2 Desg FWD 200 128.4097 (vPC) P2p
Po4 Root FWD 330 128.4099 (vPC peer-link) Network P2p
Eth2/6 Altn BLK 2000 128.262 P2pa little more info.
Po1 is my uplink to the core
Po4 is my agg vpc peer.
I see 2 paths to root on one swith. it is choosing Po4 (vpc peerlink) instead of Po1 (uplink to core)
MST0000
Spanning tree enabled protocol mstp
Root ID Priority 4096
Address 0023.04ee.be01
Cost 0
Port 4099 (port-channel4)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 8192 (priority 8192 sys-id-ext 0)
Address 547f.eea6.d2c1
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
Po1 Root FWD 200 128.4096 (vPC) P2p
Po2 Desg FWD 200 128.4097 (vPC) P2p
Po4 Root FWD 330 128.4099 (vPC peer-link) Network P2p
MST0000
Spanning tree enabled protocol mstp
Root ID Priority 4096
Address 0023.04ee.be01
Cost 0
Port 4096 (port-channel1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 8192 (priority 8192 sys-id-ext 0)
Address 547f.eea6.ce41
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
Po1 Root FWD 200 128.4096 (vPC) P2p
Po2 Desg FWD 200 128.4097 (vPC) P2p
Po3 Desg FWD 200 128.4098 (vPC) P2p
Po4 Desg FWD 330 128.4099 (vPC peer-link) Network P2p -
Mutiple spanning-tree root bridges
We've started installing some new 3650 switches (replacing 3560's at the access layer) running XE 03.03.05SE. We've run into some problems as a result of "ip device tracking" being on by default, but in the process of debugging I've found that three separate switches all believe they are the spanning-tree root bridge for the same VLANs. The new switches are by default in rapid-pvst mode; the distribution switches are set to rapid-pvst as well. All 3650's are dual-homed.
SW1#sh span vlan 999
VLAN0999
Spanning tree enabled protocol rstp
Root ID Priority 33767
Address 78da.6e6f.6d00
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 33767 (priority 32768 sys-id-ext 999)
Address 78da.6e6f.6d00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
Gi1/1/4 Desg FWD 4 128.52 P2p
Gi2/1/4 Desg FWD 4 128.116 P2p
SW2#sh span vlan 999
VLAN0999
Spanning tree enabled protocol rstp
Root ID Priority 33767
Address f40f.1b84.9680
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 33767 (priority 32768 sys-id-ext 999)
Address f40f.1b84.9680
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
Gi1/1/3 Desg FWD 4 128.51 P2p
Gi1/1/4 Desg FWD 4 128.52 P2p
SW3#sh span vlan 999
VLAN0999
Spanning tree enabled protocol rstp
Root ID Priority 33767
Address 78da.6e6f.7180
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 33767 (priority 32768 sys-id-ext 999)
Address 78da.6e6f.7180
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
Gi1/1/3 Desg FWD 4 128.51 P2p
Gi2/1/4 Desg FWD 4 128.116 P2p
Switch 1 seems to behave as if it is the real root, but this still does not make much sense to me. Does anyone have an explanation? It's been a long time since my switching class, and I very seldom have to deal with spanning-tree issues.Hi,
Having more than one root switch for a VLAN is definitely a sign of some foul play. A contiguous VLAN can never have more than one root switch. Multiple root switches would occur if, for example, the trunks interconnecting the switches had this VLAN excluded from the list of allowed VLANs, or if they were interconnected by access ports (in a different VLAN) rather than trunks. Another possibility could be an inappropriately constructed MAC ACL or VLAN ACL inadvertently block BPDUs. In any case, this may be a source of serious trouble.
Without further information about your network, it is difficult to suggest anything more specific. Would it be possible to post a diagram explaining your network topology? Also, would it be possible to post the show span root and show span bridge outputs from every switch in your network?
Thank you!
Best regards,
Peter -
Identifying spanning-tree root switch
Looking at a network with a 6509 at the core running in pvst mode. I think the 6509 is the root switch but need to confirm this.
Show spanning-tree gives a bridge id and a root id. My understanding is that the root id should be the MAC address of the root switch.
However I can't find the MAC address given as the root id in the 6509s mac address table, nor in the access switches mac address tables.
I'm sure I'm missing something here - any ideas?Hi,
in the output of "show spanning-tree" you should look for a line "This bridge is the root". The output will give you the root id and the bridge id of the switch, where you execute the command.
The output looks like this:
Router# show spanning-tree vlan 200
VLAN0200
Spanning tree enabled protocol ieee
Root ID Priority 32768
Address 00d0.00b8.14c8
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32768
Address 00d0.00b8.14c8
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300
------------- snip -----------
The MAC used for creating the bridge id is not used for forwarding BPDUs and thus does not show up in the CAM table afaik.
To find the root in a switch network, follow the root ports for a given spanning tree instance.
Hope this helps! Please rate all posts.
Regards, Martin -
The spanning-tree add strange value when I create new Vlans
Hi,
On all switchs access, the spanning-tree add strange value when I create new Vlans from Distrib Layer,
and no association is created with any interface with spanning-tree vlan 700, see below in this exemple,
until I reboot the switch.
somebody already saw this values ?
DSFDS112#sh span sum
Switch is in rapid-pvst mode
Root bridge for: none
EtherChannel misconfig guard is enabled
Extended system ID is enabled
Portfast Default is disabled
PortFast BPDU Guard Default is disabled
Portfast BPDU Filter Default is disabled
Loopguard Default is enabled
UplinkFast is disabled
Stack port is StackPort1
BackboneFast is disabled
Configured Pathcost method used is long
Name Blocking Listening Learning Forwarding STP Active
VLAN0001 0 0 0 3 3
VLAN0002 0 0 0 22 22
VLAN0006 0 0 0 3 3
VLAN0007 0 0 0 8 8
VLAN0009 0 0 0 4 4
VLAN0010 0 0 0 3 3
VLAN0011 0 0 0 3 3
VLAN0012 0 0 0 3 3
VLAN0013 0 0 0 3 3
VLAN0090 0 0 0 15 15
VLAN0109 0 0 0 3 3
VLAN0200 0 0 0 4 4
VLAN0300 0 0 0 26 26
VLAN0302 0 0 0 4 4
VLAN0700 - 253 -1872756560 2087191206 -1872756549 2080375982
VLAN0702 - 253 -1872756560 2087191206 -1872756549 2080375982
VLAN0704 0 0 0 4 4
VLAN0710 - 253 -1872756560 2087191206 -1872756549 2080375982
VLAN0816 0 0 0 3 3
VLAN0820 0 0 0 3 3
20 vlans - 759 -1323302384 1966606322 -1323302237 1946160764
DSFDS112#sh span vlan 700
VLAN0700
Spanning tree enabled protocol rstp
Root ID Priority 4796
Address 0008.e3ff.fcbc
Cost 10000
Port 608 (Port-channel1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 62140 (priority 61440 sys-id-ext 700)
Address 885a.9213.6880
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
Po1 Root FWD 10000 128.608 P2p
DSFDS112#sh run int Gi1/0/25
Building configuration...
Current configuration : 194 bytes
interface GigabitEthernet1/0/25
description Station12
switchport access vlan 700
switchport mode access
end
DSFDS112#sh span interface Gi1/0/25
no spanning tree info available for GigabitEthernet1/0/25
DSFDS112#sh int status interface Gi1/0/25
Port Name Status Vlan Duplex Speed Type
Gi1/0/25 Station12 connected 700 full 100 10/100/1000BaseTX
Thanks for your help,
Regards.Venki,
The ORA-00942 is okay because there is no existing object. But what stuck me is the ORA-01921 error which may indicate that this might not be a new database.
CREATE ROLE exp_full_database
ERROR at line 1:
ORA-01921: role name 'EXP_FULL_DATABASE' conflicts with another user or role name
CREATE ROLE imp_full_database
ERROR at line 1:
ORA-01921: role name 'IMP_FULL_DATABASE' conflicts with another user or role name
Are there any existing databases on this server? Have you tried to create it on other machine?I searched on Metalink too and found Doc ID: 237486.1 ORA-29807 Signalled While Creating Database using DBCA which say that eroror could be ignored. You may want to review that as well.
Ittichai -
Cisco Switches and HP Interoperability with Spanning-Tree (RSTP)
Hello All.
I read a lot of information from this forum about Spaning-Tree interoperability between HP Switches and Cisco Switches.
Rather than having questions I would like to post that I manage to configure successfully HP and Cisco using RSTP (802.1w).
SWPADRAO]display stp root
MSTID Root Bridge ID ExtPathCost IntPathCost Root Port
0 32768.cc3e-5f3a-2939 0 0
[SWPADRAO]display stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet1/0/47 DESI FORWARDING NONE
0 GigabitEthernet1/0/48 DESI FORWARDING NONE
[SWPADRAO]display stp instance 0
-------[CIST Global Info][Mode RSTP]-------
CIST Bridge :32768.cc3e-5f3a-2939
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC :32768.cc3e-5f3a-2939 / 0
CIST RegRoot/IRPC :32768.cc3e-5f3a-2939 / 0
CIST RootPortId :0.0
BPDU-Protection :enabled
Bridge Config-
Digest-Snooping :disabled
TC or TCN received :17
Time since last TC :0 days 0h:1m:52s
SWNHAM17#show spanning-tree VLAN0001
Spanning tree enabled protocol rstp
Root ID Priority 32768
Address cc3e.5f3a.2939
Cost 4
Port 26 (GigabitEthernet0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1)
Address 001b.54db.7200
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 Interface Role Sts Cost Prio.Nbr Type
Gi0/1 Altn BLK 4 128.25 P2p
Gi0/2 Root FWD 4 128.26 P2p
SWNHAM18#show spanning-tree VLAN0001
Spanning tree enabled protocol rstp
Root ID Priority 32768
Address cc3e.5f3a.2939
Cost 4
Port 26 (GigabitEthernet0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 61441 (priority 61440 sys-id-ext 1)
Address 001b.0cbc.4300
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 Interface Role Sts Cost Prio.Nbr Type
Gi0/1 Desg FWD 4 128.25 P2p
Gi0/2 Root FWD 4 128.26 P2pHello, David.
Your command doesn't work because it's made only for tha ports that has command "spanning-tree portfast" in them. Try change spanning tree mode at the HP switch to MSTP if this is possible. -
Hi,
I need an answer to this puzzling scenerio i have been asked to work with.I have two vlans with about 10 switches on each end and there is a link switch that has a connection to both sides of the VLAN. I have been asked to create a singular spanning tree for the entire scenerio. how can i go about this.
please i am awaiting the opinions of anyone knowledgable in this line. thanks.Hi, I agree you can config MST on your router to reduce the number of spanning tree instances runing on the switch from one per vlan. You will have to map your vlan range to the MST, useful CLI commands are
spanning-tree mode mst
spanning-tree mst configuration
name (name)
revision( revision number)
instance (number) vlan (vlan range)
check your config using
show spanning-tree mst configuration.
Hope thsi will hlep you get started.
DW -
Why the host ports are also seen in the spanning-tree output ?
Why the host ports are also seen in the spanning-tree output ?
Switch1#show spann
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 0000.0CA2.138B
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 0000.0CA2.138B
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
Fa0/1 Desg FWD 19 128.1 P2p
Fa0/2 Desg FWD 19 128.2 P2p
Fa0/15 Desg FWD 19 128.15 P2p
interface FastEthernet0/15
description PC0 Interface
switchport mode access
spanning-tree portfast
interface FastEthernet0/16
I read somewhere that all the ports of a switch will participate in STP by default. Is there any way to remove the STP operation on host ports ?
Regards,
ChanduAll ports participate in Spanning Tree by default.
Spanning tree is there to block redundant L2 paths in order to prevent loops. All ports are capable of causing a loop so you would not want to turn spanning tree off, in fact I don't think you can switch it off on a per port basis. You can switch it off on a per vlan basis.
You are already using portfast which allows host ports to transition into a forwarding state without going through the listening and learning states of STP. If you switch off STP on a port, you risk the chance of a L2 loop.
https://supportforums.cisco.com/docs/DOC-5180 -
How to hide a tree node from the GUI but still keep it in the tree model?
Hi, All
I used a JTree in my project in which I have a DefaultTreeModel to store all the tree structure and a JTree show it on the screen. But for some reason, I want to hide some of the nodes from the user, but I don't want to remove them from the tree model because later on I still need to use them.
I searched on the web, some people suggested method to hide the root node, but that's not appliable to my project because I want to hide some non-root nodes; Some people also suggested to collapse the parent node when there are child to hide, it is not appliable to me either, because there still some other childnodes (sibling of the node to hide) I want to show.
How can I hide some of the tree node from the user? Thanks for any information.
LindaHere's an example using a derivation of DefaultTreeModel that shows (or does not show) two types of Sneech (appologies to the good Dr Zeus) by overiding two methods on the model.
Now, there are many things wrong with this example (using instanceof, for example), but it's pretty tight and shows one way of doing what you want.
Note: to make it useful, you''d have to change the implementation of setShowStarBelliedSneeches() to do something more sophisticated than simply firing a structure change event on the root node. You'd want to find all the star bellied sneech nodes and call fireTreeNodesRemoved(). That way the tree would stay expanded rather than collapse as it does now.
import javax.swing.JTree;
import javax.swing.JScrollPane;
import javax.swing.JOptionPane;
import javax.swing.JCheckBox;
import javax.swing.JPanel;
import javax.swing.tree.TreePath;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.DefaultMutableTreeNode;
import java.awt.Dimension;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Enumeration;
class FilteredTree
private class PlainBelliedSneech {
public String toString() { return "Plain Bellied Sneech"; }
private class StarBelliedSneech {
public String toString() { return "Star Bellied Sneech"; }
private class FilteredTreeModel
extends DefaultTreeModel
private boolean mShowStarBelliedSneeches= true;
private DefaultMutableTreeNode mRoot;
FilteredTreeModel(DefaultMutableTreeNode root)
super(root);
mRoot= root;
public Object getChild(Object parent, int index)
DefaultMutableTreeNode node=
(DefaultMutableTreeNode) parent;
if (mShowStarBelliedSneeches)
return node.getChildAt(index);
int pos= 0;
for (int i= 0, cnt= 0; i< node.getChildCount(); i++) {
if (((DefaultMutableTreeNode) node.getChildAt(i)).getUserObject()
instanceof PlainBelliedSneech)
if (cnt++ == index) {
pos= i;
break;
return node.getChildAt(pos);
public int getChildCount(Object parent)
DefaultMutableTreeNode node=
(DefaultMutableTreeNode) parent;
if (mShowStarBelliedSneeches)
return node.getChildCount();
int childCount= 0;
Enumeration children= node.children();
while (children.hasMoreElements()) {
if (((DefaultMutableTreeNode) children.nextElement()).getUserObject()
instanceof PlainBelliedSneech)
childCount++;
return childCount;
public boolean getShowStarBelliedSneeches() {
return mShowStarBelliedSneeches;
public void setShowStarBelliedSneeches(boolean showStarBelliedSneeches)
if (showStarBelliedSneeches != mShowStarBelliedSneeches) {
mShowStarBelliedSneeches= showStarBelliedSneeches;
Object[] path= { mRoot };
int[] childIndices= new int[root.getChildCount()];
Object[] children= new Object[root.getChildCount()];
for (int i= 0; i< root.getChildCount(); i++) {
childIndices= i;
children[i]= root.getChildAt(i);
fireTreeStructureChanged(this, path, childIndices, children);
private FilteredTree()
final DefaultMutableTreeNode root= new DefaultMutableTreeNode("Root");
DefaultMutableTreeNode parent;
DefaultMutableTreeNode child;
for (int i= 0; i< 2; i++) {
parent= new DefaultMutableTreeNode(new PlainBelliedSneech());
root.add(parent);
for (int j= 0; j< 2; j++) {
child= new DefaultMutableTreeNode(new StarBelliedSneech());
parent.add(child);
for (int k= 0; k< 2; k++)
child.add(new DefaultMutableTreeNode(new PlainBelliedSneech()));
for (int j= 0; j< 2; j++)
parent.add(new DefaultMutableTreeNode(new PlainBelliedSneech()));
parent= new DefaultMutableTreeNode(new StarBelliedSneech());
root.add(parent);
for (int j= 0; j< 2; j++) {
child= new DefaultMutableTreeNode(new PlainBelliedSneech());
parent.add(child);
for (int k= 0; k< 2; k++)
child.add(new DefaultMutableTreeNode(new StarBelliedSneech()));
for (int j= 0; j< 2; j++)
parent.add(new DefaultMutableTreeNode(new StarBelliedSneech()));
final FilteredTreeModel model= new FilteredTreeModel(root);
JTree tree= new JTree(model);
tree.setShowsRootHandles(true);
tree.putClientProperty("JTree.lineStyle", "Angled");
tree.setRootVisible(false);
JScrollPane sp= new JScrollPane(tree);
sp.setPreferredSize(new Dimension(200,400));
final JCheckBox check= new JCheckBox("Show Star Bellied Sneeches");
check.setSelected(model.getShowStarBelliedSneeches());
check.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
model.setShowStarBelliedSneeches(check.isSelected());
JPanel panel= new JPanel(new BorderLayout());
panel.add(check, BorderLayout.NORTH);
panel.add(sp, BorderLayout.CENTER);
JOptionPane.showOptionDialog(
null, panel, "Sneeches on Beeches",
JOptionPane.DEFAULT_OPTION,
JOptionPane.PLAIN_MESSAGE,
null, new String[0], null
System.exit(0);
public static void main(String[] argv) {
new FilteredTree(); -
Hello,
I have an Spanning tree problem when i conect 2 links from Switch DELL M6220 (there are blades to virtual machines too) to 2 links towards 2 switches CISCO 3750 connected with an stack (behavior like one switch for redundancy, with one IP of management)
In dell virtual machine is Spanning tree rapid stp, and in 3750 is Spanning tree mode pvst, cisco says that this is not important, only is longer time to create the tree.
I dont know but do you like this solutions i want to try on sunday?:
Could Spanning tree needs to work to send one native vlan to negociate the bdpus? switchport trunk native vlan 250
Is it better to put spanning-tree guard root in both 3750 in the ports to mitigate DELL to be root in Spanning Tree?
Is it better to put spanning- tree port-priority in the ports of Swicht Dell?
¿could you help me to control the root? ¿Do you think its better another solution? thanks!
CONFIG WITH PROBLEM
======================
3750: (the 2 ports are of 2 switches 3750s conected with a stack cable, in a show run you can see this)
interface GigabitEthernet2/0/28
description VIRTUAL SNMP2
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 4,13,88,250
switchport mode trunk
switchport nonegotiate
logging event trunk-status
shutdown
interface GigabitEthernet1/0/43
description VIRTUAL SNMP1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 4,13,88,250
switchport mode trunk
switchport nonegotiate
shutdown
DELL M6220: (its only one swith)
interface Gi3/0/19
switchport mode trunk
switchport trunk allowed vlan 4,13,88,250
exit
interface Gi4/0/19
switchport mode trunk
switchport trunk allowed vlan 4,13,88,250
exitF.Y.I for catylyst heroes - here is the equivalent config for SG-300 - Vlan1 is required on the allowed list on the catylyst side (3xxx/4xxx/6xxx)
In this example:
VLANS - Voice on 188, data on 57, management on 56.
conf t
hostname XXX-VOICE-SWXX
no passwords complexity enable
username xxxx priv 15 password XXXXX
enable password xxxxxx
ip ssh server
ip telnet server
crypto key generate rsa
macro auto disabled
voice vlan state auto-enabled !(otherwise one switch controls your voice vlan….)
vlan 56,57,188
voice vlan id 188
int vlan 56
ip address 10.230.56.12 255.255.255.0
int vlan1
no ip add dhcp
ip default-gateway 10.230.56.1
interface range GE1 - 2
switchport mode trunk
channel-group 1 mode auto
int range fa1 - 24
switchport mode trunk
switchport trunk allowed vlan add 188
switchport trunk native vlan 57
qos advanced
qos advanced ports-trusted
exit
int Po1
switchport trunk allowed vlan add 56,57,188
switchport trunk native vlan 1
do sh interfaces switchport po1
!CATYLYST SIDE
!Must Explicitly allow VLan1, this is not normal for catalysts - or spanning tree will not work ! Even though it’s the native vlan on both sides.
interface Port-channel1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,56,57,189
switchport mode trunk -
How to populate Tree structure from BAPI while tree grows or shrinks
Hi All
Currently I am populating the tree structure from BAPI based on the HLevel (Hierarchy Level) parameter, but when ever insertion and deletion happens in the tree at any level in the UI and at the same time i am updating these tree node values with HLevel value(example : 1 is first level , 2 is second level, 3 is third level etc) updating successfully& correctly into the BAPI, no issues.
Once it is updated into the BAPI, next time when i refreshed the UI then i am not populating the tree structure correctly from BAPI with updated new nodes based on the HLevel. when tree struture grows or shrinks in the BAPI after updating into BAPI from UI then i am not populating the tree sturcture correctly based on the HLevel value from the BAPI.
Please let me know any sample code how to populate tree structure correctly when tree structure grows or shrinks based on the HLevel value ( Hierarchy Level , for example : 1 is level , 2 is 2nd level , 3 is third level nodes etc)
anybody helps in this regard with sample code on the populating tree tructure then it would be great help to me.
Thanks in advance
Regards
Kalki Reddy
Edited by: KalkiReddy on Nov 29, 2009 3:48 PMBapi output node:
Value | Text | HLevel
01 | A | 1
0101 | AA | 2
010101 | AAA | 3
01010B | AAB | 3
0102 | AB | 2
02 | B | 1
0201 | BA | 2
This code is used to build the tree in wdDoInit method
IE_T_CatalogueNode catalogueNode = wdContext.nodeE_T_Catalogue();
int size = catalogueNode.size();
ICatalogoElement level1elem = null;
for (int i = 0; i < size; i ++)
IE_T_CatalogueElement catalogueElem = catalogueNode.getE_T_CatalogueElementAt(i);
if (catalogueElem.getLevel().equals("1"))
// 1 Livello
level1elem = wdContext.createCatalogoElement();
level1elem.setKATALOGART_CODE(catalogueElem.getKatalogart());
level1elem.setCODEGRUPPE_CODE(catalogueElem.getCodegruppe());
level1elem.setCODE(catalogueElem.getCode());
level1elem.setCODE_DESCR(catalogueElem.getKatalogart_Descr());
level1elem.setDESCR(catalogueElem.getKatalogart_Descr());
wdContext.nodeCatalogo().addElement(level1elem);
for (int j = i + 1; j < size; j ++)
IE_T_CatalogueElement catalogueElem2level =
catalogueNode.getE_T_CatalogueElementAt( j );
String level2 = catalogueElem2level.getLevel();
if (level2.equals("2"))
ICatalogoElement level2elem = level1elem.nodeChild().createCatalogoElement();
level2elem.setKATALOGART_CODE(catalogueElem2level.getKatalogart());
level2elem.setCODEGRUPPE_CODE(catalogueElem2level.getCodegruppe());
level2elem.setCODE(catalogueElem2level.getCode());
level2elem.setCODE_DESCR(catalogueElem2level.getCodegruppe_Descr());
level2elem.setDESCR(catalogueElem2level.getCodegruppe_Descr());
level1elem.nodeChild().addElement(level2elem);
for (int k = j + 1; k < size; k ++)
IE_T_CatalogueElement catalogueElem3level =
catalogueNode.getE_T_CatalogueElementAt( k );
String level3 = catalogueElem3level.getLevel();
if (level3.equals("3"))
ICatalogoElement level3elem = level2elem.nodeChild().createCatalogoElement();
level3elem.setKATALOGART_CODE(catalogueElem3level.getKatalogart());
level3elem.setCODEGRUPPE_CODE(catalogueElem3level.getCodegruppe());
level3elem.setCODE(catalogueElem3level.getCode());
level3elem.setCODE_DESCR(catalogueElem3level.getCode_Descr());
level3elem.setDESCR(catalogueElem3level.getCode_Descr());
level2elem.nodeChild().addElement(level3elem);
Damiano -
How to Create Instances in the Transient Root Node and Sub Nodes from Root Node Query Method ?
Hi All,
I am Creating a BOPF BO with 3 Nodes,
Node 1) ROOT -- > contains a query,
using Root Node I have created Search UIBB Configuration in FBI.
In testing -- > when i enter Data in the Search Criteria Fields am able to get the details in to the query method
from Imporing parameter : 'IT_SELECTION_PARAMETERS'.
HERE I am fetching data from a standard table and trying to fill the data in the Node : 'MNR_SEARCH_RESULT'.
How to Append data to the Sub node 'MNR_SEARCH_RESULT' when there is no Node instance created in the ROOT Node ?
For This I have created an instance in the ROOT Node and Using that I tried to create Instance in the Sub Node 'MNR_SEARCH_RESULT'.
Below is my code which i have placed in the Query method ..
DATA : LR_DATA TYPE REF TO ZBO_S_ROOT1.
DATA : LR_SEARCH_RES TYPE REF TO ZBO_S_MNR_SEARCH_RESULT.
DATA : LO_CI_SERVICE_MANAGER TYPE REF TO /BOBF/IF_TRA_SERVICE_MANAGER,
LO_TRANSACTION_MANAGER TYPE REF TO /BOBF/IF_TRA_TRANSACTION_MGR.
LO_CI_SERVICE_MANAGER = /BOBF/CL_TRA_SERV_MGR_FACTORY=>GET_SERVICE_MANAGER( IV_BO_KEY = ZIF_BO_TEST_PO_C=>SC_BO_KEY ).
LO_TRANSACTION_MANAGER = /BOBF/CL_TRA_TRANS_MGR_FACTORY=>GET_TRANSACTION_MANAGER( ).
CREATE DATA LR_DATA.
LR_DATA->KEY = LO_CI_SERVICE_MANAGER->GET_NEW_KEY( ).
LR_DATA->ROOT_KEY = IS_CTX-ROOT_NODE_KEY.
LR_DATA->PIPO_MAT_ID = '100100'.
LR_DATA->PIPO_MAT_DESC = 'MATERIAL'.
LR_DATA->PIPO_SPRAS = 'E'.
LR_DATA->PIPO_MATL_TYPE = 'ZPMI'.
LR_DATA->PIPO_MATL_GROUP = 'ZKK'.
DATA lt_mod TYPE /bobf/t_frw_modification.
DATA lo_change TYPE REF TO /bobf/if_tra_change.
DATA lo_message TYPE REF TO /bobf/if_frw_message.
FIELD-SYMBOLS: <ls_mod> LIKE LINE OF lt_mod.
APPEND INITIAL LINE TO lt_mod ASSIGNING <ls_mod> .
<ls_mod>-node = ZIF_BO_TEST_PO_C=>sc_node-ROOT.
<ls_mod>-change_mode = /bobf/if_frw_c=>sc_modify_create.
<ls_mod>-key = LR_DATA->KEY.
<ls_mod>-data = LR_DATA.
DATA : LT_CHG_FIELDS TYPE /BOBF/T_FRW_NAME.
DATA : LS_CHG_FIELDS LIKE LINE OF LT_CHG_FIELDS.
DATA : LV_KEY TYPE /BOBF/CONF_KEY.
CALL METHOD IO_MODIFY->CREATE
EXPORTING
IV_NODE = ZIF_BO_TEST_PO_C=>sc_node-ROOT
IV_KEY = LR_DATA->KEY
IS_DATA = LR_DATA
IV_ROOT_KEY = IS_CTX-ROOT_NODE_KEY
IMPORTING
EV_KEY = LV_KEY .
CREATE DATA LR_SEARCH_RES.
LR_SEARCH_RES->KEY = LO_CI_SERVICE_MANAGER->GET_NEW_KEY( )..
LR_SEARCH_RES->PARENT_KEY = LV_KEY.
LR_SEARCH_RES->ROOT_KEY = LV_KEY.
LR_SEARCH_RES->MATNR = '123'.
LR_SEARCH_RES->ERSDA = SY-DATUM.
LR_SEARCH_RES->ERNAM = SY-UNAME.
**LR_SEARCH_RES->LAEDA = .
**LR_SEARCH_RES->AENAM = .
**LR_SEARCH_RES->VPSTA = .
*LR_SEARCH_RES->LVORM = .
LR_SEARCH_RES->MTART = 'ZPI'.
LR_SEARCH_RES->MBRSH = 'ZTP' .
LR_SEARCH_RES->MATKL = 'MAT'.
**LR_SEARCH_RES->BISMT = ''
**LR_SEARCH_RES->MEINS =
CALL METHOD io_modify->create
EXPORTING
iv_node = ZIF_BO_TEST_PO_C=>sc_node-MNR_SEARCH_RESULT
is_data = LR_SEARCH_RES
iv_assoc_key = ZIF_BO_TEST_PO_C=>sc_association-root-MNR_SEARCH_RESULT
iv_source_node_key = ZIF_BO_TEST_PO_C=>sc_node-root
iv_source_key = LV_KEY
iv_root_key = LV_KEY.
I am Unable to set data to the Node . I did not get any error message or Dump while executing . when i tried to retrive data I got the details from the node but am unable to view those details in the FBI UI and BOBT UI while testing .
Please provide your valuable Suggestions.
Thanks in Adv.
Thanks ,
Kranthi Kumar M.Hi Kranthi,
For your requirement you need only two nodes. Root Node and Result node. Use the same structure for both.
To create Instance while search.
Create Query method with input type which has the required fields for selection criteria.
Fetch the data and create instance in the root node.
Pass the new instance key as exporting parameter form Query Method.
To Move data from ROOT to Result.
Create a action at root node.
Write a code to create new entries in Result node.
Then configure the Search UIBB and display result in List UIBB. Add button and assign the action MOVE_MAT_2_RESULT.
Create another List uibb to display data from Result node.
Connect the UIBBs using wire schema. SEARCH -> LIST(ROOT) ---> LIST(RESULT).
Give src node association for ROOT to RESULT Configuration.
Regards,
Sunil -
When I delete a name from Address Book it is not removed from the name drop down list when forwarding a message. How can I remove it from the drop down list?
In Mail go to the Window Menu and select Previous Recipients. Deleting entries from there won't delete them from your Address Book.
Maybe you are looking for
-
HP printer fails to connect properly if second NW5 server is up
Hi, I have a baffling problem which sounds, I know, somewhat unlikely, but I have looked at it carefully and I believe my description is accurate. I am very much hoping that it is not as mad as it sounds and that someone can offer some information on
-
Automatic creation of Generic Transactions
Hi colleagues I am thinking about using generic transaction in our TRM implemetation. But I havn't found a way for creating them except manual enter via RCA00. I am sure there must be a kind of user-exit for their automatic creation (a sort of BADi o
-
Lightroom CC: In the Map module, why is the Map Tracklog"Auto-Tag Photos" choice inactive?
In the Lightroom CC Map module, the "Auto-Tag Photos" choice in the Main Menu > Map > Tracklog submenu is inactive (grayed out) when I try to tag GPS metadata from a tracklog to a selected photo. However, for the same tracklog and selected photo, the
-
Services in the Tux 9.1 to ALSB?
Can anyone pls gimme a Sample programme where i can call a Service in Tux 9.1 through ALSB n vice versa Pls help me out. Edited by: user11119905 on 10-May-2009 22:23
-
Firefox won't recognize hyperlinks in PeoplePC Webmail message text
When I paste or type in a hyperlink in the body of an email, Internet Explorer recognizes it, and it arrives at the receiver's computer as a hyperlink, which he or she can click on to bring up the web page. With Firefox, it just arrives as text, and