Shows Simple Loop Protection Protocol (SLPP) Guard status for selected ports or all SLPP Guard-disabled ports.
| slpp | Specifies configuring SLPP. |
| guard | Specifies disabling a port as soon as an SLPP PDU is received. |
| ports | Specifies selecting ports that you want to see SLPP Guard status on. |
| port_list | Selects the ports that you want to see SLPP Guard status on. |
| disabled-ports | Specifies showing information about ports disabled by SLPP Guard. |
N/A.
SLPP is an application that detects loops in a Split Multi-link Trunking (SMLT) network. SLPP Guard is a complementary feature that helps prevent loops in networks by administratively disabling an edge port if a switch receives an SLPP PDU from an SMLT network.
This command shows SLPP Guard status about selected ports (ports option) or shows all ports that have been disabled by SLPP Guard (disabled-ports option).
The following example shows SLPP guard status for ports 15, 16, 31, 61, and 62
# show slpp guard ports 15 16 31 61 62
Port SLPP Guard State Timeout Age Last Time Disabled
--------- ---------- ---------- ------- ------ ----------------------------
15 Enabled Disabled 300 46 Thu May 17 12:30:27 2018
16 Enabled Monitoring 300 NA NA
31 Enabled Disabled 300 218 Thu May 17 12:10:27 2018
61 Enabled Disabled 300 205 Thu May 17 12:20:27 2018
62 Enabled Disabled None NA Thu May 17 12:35:27 2018
================================================================================
State:
Disabled: Port disabled due to SLPP PDU received.
Monitoring: Listening for SLPP PDU.
None: Port is down.
SLPP Guard Ethertype : 0xefef
The following example shows SLPP Guard-disabled ports:
# show slpp guard disabled-ports Port SLPP Guard State Timeout Age Last Time Disabled --------- ---------- ---------- ------- ------ ---------------------------- 15 Enabled Disabled 300 46 Thu May 17 12:30:27 2018 31 Enabled Disabled 300 218 Thu May 17 12:10:27 2018 61 Enabled Disabled 300 205 Thu May 17 12:20:27 2018 62 Enabled Disabled None NA Thu May 17 12:35:27 2018 ================================================================================
The following example shows SLPP Guard enabled by CLI:
# show slpp guard ports 1
Enable
Port SLPP Guard State Timeout Age Last Time Disabled Flags
--------- ---------- ---------- ------- ------ ----------------------- ------
1 Enabled None 60 NA NA C-
===============================================================================
State:
Disabled: Port disabled due to SLPP PDU received.
Monitoring: Listening for SLPP PDU.
None: Port is down.
Enable Flags: (C) By CLI, (R) By Radius VSA
SLPP Guard Ethertype: 0X8102
The following example shows SLPP Guard enabled by Radius VSA:
# show slpp guard ports 1
Enable
Port SLPP Guard State Timeout Age Last Time Disabled Flags
--------- ---------- ---------- ------- ------ ----------------------- ------
1 Enabled None 60 NA NA -R
===============================================================================
State:
Disabled: Port disabled due to SLPP PDU received.
Monitoring: Listening for SLPP PDU.
None: Port is down.
Enable Flags: (C) By CLI, (R) By Radius VSA
SLPP Guard Ethertype: 0X8102
The following example shows SLPP Guard enabled by Radius VSA and CLI:
# show slpp guard ports 1
Enable
Port SLPP Guard State Timeout Age Last Time Disabled Flags
--------- ---------- ---------- ------- ------ ----------------------- ------
1 Enabled None 60 NA NA CR
===============================================================================
State:
Disabled: Port disabled due to SLPP PDU received.
Monitoring: Listening for SLPP PDU.
None: Port is down.
Enable Flags: (C) By CLI, (R) By Radius VSA
SLPP Guard Ethertype: 0X8102
This command was first available in ExtremeXOS 30.2.
Support for the Radius Attribute was introduced in ExtremeXOS 31.4.
This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.