system-settings-modify

Use this command to modify system settings.

Specify one or more of the following options:

optimize-arps|no-optimize-arps

Enable or disable ARP optimization. This feature is ON by default. When ON, the NetVisor sends all ARP requests and Gratuitous ARP requests to the local CPU of the corresponding switch, and responds to ARP requests on behalf of the intended ARP targets. This feature corresponds to an ARP-proxy function on the corresponding switch. It is assumed that ARP requests and Gratuitous ARP requests are used by NetVisor to learn the MAC address to IPv4 address mapping, as well as Unknown Unicast and Broadcast traffic when the parameters, manage-unknown-unicast or manage-broadcast are ON. When OFF, the NetVisor learns and bridges ARP requests on the switch ASIC instead of relying on the local CPU.

lldp|no-lldp

Enable or disable LLDP at the system level. The Link Layer Discovery Protocol (LLDP) is an open, vendor-independent protocol that advertises a device's identity, abilities, and neighboring devices connected within the Local Area Network.

policy-based-routing|no-policy-based-routing

Enable or disable policy-based routing. Policy-Based Routing (PBR) enables flexible packet forwarding and routing through user defined policies.

optimize-nd|no-optimize-nd

Enable or disable Neighbor Discovery optimization. This feature is ON by default. When ON, NetVisor sends all Neighbor Solicitations and Unsolicited Neighbor Advertisements to the local CPU of the corresponding switch, responds to Neighbor Solicitation requests on behalf of the intended ND targets themselves. This feature corresponds to an ND-proxy function on the corresponding switch. Neighbor Solicitations and Unsolicited Neighbor Advertisements are used by NetVisor to learn the MAC address to IPv6 address mapping, as well as Unknown Unicast and Broadcast traffic when tthe parameters, manage-unknown-unicast or manage-broadcast are ON. When OFF, NetVisor OS learns and bridges Neighbor Solicitations on the switch ASIC instead of relying on NetVisor.

reactivate-mac|no-reactivate-mac

Enable or disable reactivation of aged out MAC entries. This feature is ON by default. When ON, if a vPort entry is looked up and found as inactive, the corresponding l2-table entry is re-activated on the switch. When OFF, the traffic is flooded on the corresponding broadcast domain by NetVisor OS. Please note that l2-table entries are refreshed on the Ethernet switch ASIC every time it is used, otherwise it is removed after a time of inactivity corresponding to configured aging period. Requires unknown-unicast to be enabled.

reactivate-vxlan-tunnel-mac|no-reactivate-vxlan-tunnel-mac

Enable or disable reactivation of MAC entries over VXLAN tunnels.

manage-unknown-unicast|no-manage-unknown-unicast        

Enable or disable unknown unicast management. This feature is ON by default. NetVisor sends all unknown-unicast traffic to the local CPU of the corresponding switch. NetVisor learns the source of unknown-unicast packets and floods the packets on the corresponding unknown-unicast domain. When OFF, all unknown-unicast traffic is flooded on the corresponding unknown-unicast domain by the switch instead of relying on NetVisor.

manage-broadcast|no-manage-broadcast

Enable or disable broadcast management. This feature is ON by default. NetVisor sends all broadcast traffic to the local CPU of the corresponding switch. NetVisor learns the source of broadcast packets and floods the packets on the corresponding broadcast domain. When OFF, all unicast traffic is flooded on the corresponding broadcast domain by the switch instead of relying on NetVisor.

block-loops|no-block-loops

Enable or disable loop detection. NetVisor Loop Detection exposes loops to customers using system log messages, port-show output, and vport-show output.

Note: This parameter is available only on NSU, NRU-02, NRU-03, and NRU-S0301 platforms.

auto-trunk|no-auto-trunk

Enable or disable auto trunking.

auto-host-bundle|no-auto-host-bundle

Enable or disable auto host bundling. This feature enables auto trunking of ports between PN switches and ESXi hosts.

cluster-active-active-routing|no-cluster-active-active-routing

Enable or disable active-active routing on a cluster. Here, two cluster switches run vRouters with active-active VRRP in order to provide redundant Layer 3 next hops (using virtual IPs) to both upstream and downstream devices.

fast-route-download|no-fast-route-download

Enable or disable fast route download from routesnoop.

fast-interface-lookup|no-fast-interface-lookup

Enable or disable fast router interface lookup.

routing-over-vlags|no-routing-over-vlags

Enable or disable routing over vLAGs. This feature allows packets

crossing the cluster link to be routed without being dropped when egressing vLAGs.

source-mac-miss to-cpu|copy-to-cpu

Specify either of the options as the unknown source MAC learn behavior.

optimize-datapath disable|cluster-only|all

Specify the datapath optimization for cluster, fabric and vRouter communication:

• disable- disables the datapath optimization.
• cluster-only- enables datapath optimization for cluster-only, where cluster traffic is redirected to cluster 4094 vNIC.
• all- enables datapath optimization for fabric and data traffic. The default value is all.

cpu-class-enable|no-cpu-class-enable

Enable or disable CPU class. This feature enables advanced CPTP which operates over 43 independent queues (from 0 to 42) in order to be able to provide separation and granular control over different types of control plane traffic classes.

usb-port|no-usb-port

Enable or disable the USB port on the front of the switch. This is only applicable to switches with ONVL.

use-igmp-snoop-l2|use-igmp-snoop-l3        

Specify whether L2 or L3 tables are to be used for IGMP snooping.

vle-tracking-timeout <3..30>

Set a vLE tracking timeout as a value between 3 and 30s. The default timeout is 3s.

pfc-buffer-limit pfc-buffer-limit-string

Specify the percent of global system buffer space allowed for PFC.

cosq-weight-auto|no-cosq-weight-auto

Specify either of the options to enable or disable automatic weight assignment for CoS (Class of Service) queues based on min-guarantee configuration.

lossless-mode|no-lossless-mode        

Enable or disable lossless mode.

stagger-queries|no-stagger-queries

Stagger igmp/mld snooping queries.

sfp28-port-mode 48x25G|36x25G+12x10G/1G|24x25G+24x10G/1G

Configure the sfp28 port mode using one of the three options.

Note: This parameter is available only on AS7326-56X / F9480-V Platforms.

host-refresh|no-host-refresh

Enable or disable refreshing host ARP entries to keep L2 entries active.

proxy-conn-retry|no-proxy-conn-retry

Enable or disable proxy connection retry.

proxy-conn-max-retry 0..10

Set the maximum number of proxy connection retry attempts as a value between 0 and 10.

proxy-conn-retry-interval 100..2000

Set the number of milliseconds to wait between proxy connection retry attempts. This is a value between 100 and 2000.

nvos-debug-logging|no-nvos-debug-logging

Logging mode selection (Direct OR viz. nvlog demon)

manage-l2-uuc-drop|no-manage-l2-uuc-drop

Enable or disable L2 UUC (Unknown Unicast Drop) towards data port.

xcvr-link-debug|no-xcvr-link-debug

Enable or disable system debug to capture link information.

fastpath-bfd|no-fastpath-bfd        

Enable or disable BFD fastpath. This feature is disabled by default.

linkscan-interval 10000..1000000

Specify the linkscan interval as a value between 10000μs and 1000000μs. The default value is 150000μs.

linkscan-mode software|hardware

Specify the linkscan mode as hardware or software. Software linkscan mode is enabled by default.

single-pass-flood|no-single-pass-flood

Enable or disable single-pass flood.