diff --git a/content/cumulus-linux-50/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-50/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index 77ac5e0e8f..6879c594ba 100644 --- a/content/cumulus-linux-50/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-50/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -26,6 +26,7 @@ You can configure SPAN and ERSPAN in one of the following ways: - Cumulus Linux does not support IPv6 ERSPAN destinations. - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. {{%/notice%}} ## NVUE Configuration diff --git a/content/cumulus-linux-51/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-51/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index 3c195c5f43..c92daf8d60 100644 --- a/content/cumulus-linux-51/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-51/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -28,6 +28,7 @@ You can configure SPAN and ERSPAN in one of the following ways: - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL rules for SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. - Cumulus VX does not support ACL rules for SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. {{%/notice%}} ## NVUE Configuration diff --git a/content/cumulus-linux-510/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-510/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index 760ea00f3c..e155f38dce 100644 --- a/content/cumulus-linux-510/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-510/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -574,3 +574,4 @@ cumulus@switch:~$ sudo cl-acltool -L all | grep SPAN - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL-based SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. diff --git a/content/cumulus-linux-511/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-511/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index 760ea00f3c..e155f38dce 100644 --- a/content/cumulus-linux-511/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-511/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -574,3 +574,4 @@ cumulus@switch:~$ sudo cl-acltool -L all | grep SPAN - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL-based SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. diff --git a/content/cumulus-linux-52/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-52/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index 995f8694ee..ebced070a8 100644 --- a/content/cumulus-linux-52/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-52/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -27,6 +27,7 @@ You can configure SPAN and ERSPAN in one of the following ways: - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL rules for SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. {{%/notice%}} ## NVUE Configuration diff --git a/content/cumulus-linux-53/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-53/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index c89f7557e2..6e85d88765 100644 --- a/content/cumulus-linux-53/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-53/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -27,6 +27,7 @@ You can configure SPAN and ERSPAN in one of the following ways: - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL rules for SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. {{%/notice%}} ## NVUE Configuration diff --git a/content/cumulus-linux-54/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-54/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index b9603805a1..e8fd9c1cc7 100644 --- a/content/cumulus-linux-54/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-54/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -27,6 +27,7 @@ You can configure SPAN and ERSPAN in one of the following ways: - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL rules for SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. {{%/notice%}} ## NVUE Configuration diff --git a/content/cumulus-linux-55/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-55/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index 0ede525245..6aca9d6ea5 100644 --- a/content/cumulus-linux-55/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-55/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -576,3 +576,4 @@ cumulus@switch:~$ sudo cl-acltool -L all | grep SPAN - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL-based SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. diff --git a/content/cumulus-linux-56/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-56/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index 5baba85fc1..5b22ee1ac5 100644 --- a/content/cumulus-linux-56/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-56/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -576,3 +576,4 @@ cumulus@switch:~$ sudo cl-acltool -L all | grep SPAN - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL-based SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. diff --git a/content/cumulus-linux-57/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-57/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index 95cef19ed5..3785d978a2 100644 --- a/content/cumulus-linux-57/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-57/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -574,3 +574,4 @@ cumulus@switch:~$ sudo cl-acltool -L all | grep SPAN - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL-based SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. diff --git a/content/cumulus-linux-58/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-58/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index edff8589e5..4c32c59beb 100644 --- a/content/cumulus-linux-58/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-58/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -574,3 +574,4 @@ cumulus@switch:~$ sudo cl-acltool -L all | grep SPAN - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL-based SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF. diff --git a/content/cumulus-linux-59/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md b/content/cumulus-linux-59/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md index 760ea00f3c..e155f38dce 100644 --- a/content/cumulus-linux-59/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md +++ b/content/cumulus-linux-59/Monitoring-and-Troubleshooting/Network-Troubleshooting/SPAN-and-ERSPAN.md @@ -574,3 +574,4 @@ cumulus@switch:~$ sudo cl-acltool -L all | grep SPAN - ERSPAN does not cause the kernel to send ARP requests to resolve the next hop for the ERSPAN destination. If an ARP entry for the destination or next hop does not already exist in the kernel, you need to manually resolve this before sending mirrored traffic (use `ping` or `arping`). - Mirroring to the same interface that you are monitoring causes a recursive flood of traffic and might impact traffic on other interfaces. - Cumulus VX does not support ACL-based SPAN, ERSPAN, or port mirroring. To capture packets in Cumulus VX, use the `tcpdump` command line network traffic analyzer. +- When you configure ERSPAN sessions with the NVUE `nv set system port-mirror` commands, the destination IP address must be reachable from the source IP address through the **default** VRF.