■4876495: The port status is unstable
There is a known problem with Spanning Tree (STP and RSTP) when it is used with aggregated links. When you have an aggregated link (a single link comprised of multiple ports) between two switches and you enable spanning tree on that aggregated link, the spanning tree control packets on the trunk link are not reliably received by the switch in the chassis. The effect of this is that spanning tree does not converge, the port state of the aggregate link keeps changing, and network connectivity is likely to be disrupted. Firmware that fixes this problem is now available from http://sunsolve.sun.com (patch number:
■4804804: no switchport allowed vlan command fails
There is a known problem with the no switchport allowed vlan command that enables you to remove all VLANs except the native VLAN from a particular port. Issuing this command on a port that has learned a VLAN by using GVRP causes the learned VLAN to be assigned to the switch’s VLAN database as a static VLAN instead of being removed from the database. If you need to remove static VLANs from a port that has GVRP enabled, we recommend you use the no switchport allowed vlan remove vlanid command (where vlanid is the number identifying the static). If you do use the no switchport allowed vlan command, you must delete manually from the VLAN database any unrequired VLANs.
To do this, type the following:
Console#configure
Console(config)#vlan database
Console(config)#no vlan vlanid
where vlanid is the number identifying a VLAN that you want to remove from the switch’s database. Firmware that fixes this problem is now available from http://sunsolve.sun.com (patch number:
■Sometimes error messages from the switch refer to ports by number instead of name. The correct mapping of port names to port numbers is:
Port Names | Port Numbers |
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NETMGT | 1/25 |
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■The integrated switches on the Sun Fire B1600 blade system chassis are each composed of two switch chips linked together. It is only possible to mirror the traffic on one port by using another port that is on the same switch chip. And it is only possible to enable flow control between two ports on the same switch chip.