Switch egress

Author: i | 2025-04-25

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Command.Egress Queue LengthThe following example configures the egress queue length histogram and sets the minimum boundary size to 960, the histogram size to 12288, and the sampling interval to 1024. These settings apply to interfaces that have the egress-buffer histogram enabled and do not have different values configured for these settings at the interface level:cumulus@switch:~$ nv set service telemetry histogram egress-buffer bin-min-boundary 960 cumulus@switch:~$ nv set service telemetry histogram egress-buffer histogram-size 12288 cumulus@switch:~$ nv set service telemetry histogram egress-buffer sample-interval 1024cumulus@switch:~$ nv config applyThe following example enables the egress queue length histogram for traffic class 0 on swp1 through swp8 with the globally applied minimum boundary, histogram size, and sample interval. The example also enables the egress queue length histogram for traffic class 1 on swp9 through swp16 and sets the minimum boundary to 768 bytes, the histogram size to 9600 bytes, and the sampling interval to 2048 nanoseconds.cumulus@switch:~$ nv set service telemetry enable oncumulus@switch:~$ nv set interface swp1-8 telemetry histogram egress-buffer traffic-class 0cumulus@switch:~$ nv set interface swp9-16 telemetry histogram egress-buffer traffic-class 1 bin-min-boundary 768cumulus@switch:~$ nv set interface swp9-16 telemetry histogram egress-buffer traffic-class 1 histogram-size 9600cumulus@switch:~$ nv set interface swp9-16 telemetry histogram egress-buffer traffic-class 1 sample-interval 2048cumulus@switch:~$ nv config applyIngress Queue LengthThe following example configures the ingress queue length histogram and sets the minimum boundary size to 960 bytes, the histogram size to 12288 bytes, and the sampling interval to 1024 nanoseconds. These settings apply to interfaces that have the ingress-buffer histogram enabled and do not have different values configured for these settings at the interface level:cumulus@switch:~$ nv set service telemetry enable oncumulus@switch:~$ nv set service telemetry histogram ingress-buffer bin-min-boundary 960 cumulus@switch:~$ nv set service telemetry histogram ingress-buffer histogram-size 12288 cumulus@switch:~$ nv set service telemetry histogram ingress-buffer sample-interval 1024cumulus@switch:~$ nv config applyThe following example enables the ingress queue length histogram for priority group 0 on swp1 through swp8 with the globally applied minimum boundary, histogram size, and sample interval. The example also enables the ingress queue length histogram for priority group 1 on swp9 through swp16 and sets the minimum boundary to 768 bytes, the histogram size to 9600 bytes, and the sampling interval to 2048 nanoseconds.cumulus@switch:~$ nv set interface swp1-8 telemetry histogram ingress-buffer priority-group 0cumulus@switch:~$ nv set interface swp9-16 telemetry histogram ingress-buffer priority-group 1 bin-min-boundary 768cumulus@switch:~$ nv set interface swp9-16 telemetry histogram ingress-buffer priority-group 1 histogram-size 9600cumulus@switch:~$ nv set interface swp9-16 telemetry histogram ingress-buffer priority-group 1 sample-interval 2048cumulus@switch:~$ nv config applyCounter HistogramThe following example configures the counter histogram and sets the minimum boundary size to 960, the histogram size to 12288, and the sampling interval to 1024. The histogram monitors all counter types. These settings apply to interfaces that have the counter histogram enabled and do not have different (0..10000; Default:0x8100) Egress customer TPID override allows custom identification for egress frames with a customer tag. Default value is for tag of 802.1Q frames. ingress-service-tpid-override (yes | no; Default:!ingress-service-tpid-override)ingress-service-tpid (0..10000; Default: 0x88A8) Ingress service TPID override allows accepting specific frames with a custom service tag TPID. Default value is for service tag of 802.1AD frames. egress-service-tpid-override (yes | no; Default:!egress-service-tpid-override)egress-service-tpid (0..10000; Default:0x88A8) Egress service TPID override allows custom identification for egress frames with a service tag. Default value is for service tag of 802.1AD frames. Property Description custom-drop-counter-includes (counters; Default:none) Custom include to count dropped packets for switch port custom-drop-packet counter.device-loopbackfdb-hash-violationexceeded-port-learn-limitationdynamic-station-movestatic-station-moveufdb-source-drophost-source-dropunknown-hostingress-vlan-filtered queue-custom-drop-counter0-includes (counters;Default: none) Custom include to count dropped packets for switch port tx-queue-custom0-drop-packet and bytes for tx-queue-custom0-drop-byte counters.redyellowgreenqueue0...queue7 queue-custom-drop-counter1-includes (counters;Default: none) Custom include to count dropped packets for switch port tx-queue-custom1-drop-packet and bytes for tx-queue-custom1-drop-byte counters.redyellowgreenqueue0...queue7 policy-drop-counter-includes (counters;Default: none) Custom include to count dropped packets for switch port policy-drop-packet counter.ingress-policingingress-aclegress-policingegress-aclForwarding DatabasesUnicast FDBSub-menu: /interface ethernet switchunicast-fdbThe unicast forwarding database supports up to 16318 MAC entries. Property Description action (action; Default: forward) Action for UFDB entry: dst-drop - Packets are dropped when their destination MAC matchthe entry. dst-redirect-to-cpu - Packets are redirected to CPU when theirdestination MAC match the entry. forward - Packets are forwarded. src-and-dst-drop - Packets are dropped when their source MAC ordestination MAC match the entry. src-and-dst-redirect-to-cpu - Packets are redirected to CPUwhen their source MAC or destination MAC match the entry. src-drop - Packets are dropped when their source MAC match theentry. src-redirect-to-cpu - Packets are redirected to CPU when theirsource MAC match the entry. disabled (yes | no; Default: no) Enables or disables Unicast FDB entry. isolation-profile (community1 | community2 |isolated | promiscuous; Default: promiscuous) MAC level isolation profile. mac-address (MAC address) The action command applies to the packet when the destination MAC orsource MAC matches

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The following are sample topology diagrams for an IP Directed Broadcast configuration. Figure 1 shows when the egress interface is an SVISwitched Virtual Interface (SVI) is a logical Layer 3 interface configured per VLAN (one-to-one mapping) that performs all Layer 3 processing for packets to or from all switch ports associated with that VLAN., while figure 2 shows the diagram when the egress interface is an ROP. Figure 1 SVI: IP Directed Broadcast d Broadcast Figure 2 ROP: IP Directed Broadcast SVI: IP Directed Broadcast Intermediate routers forward IP Directed Broadcast packets as Unicast. The IP directed broadcast packet is broadcast or flood in the target subnet (DA MAC: All 0xFFs) only after the last hop router. Host A in subnet 192.168.3.0/24 wants to inject a IP Directed Broadcast (192.168.1.255) packet into Target Subnet 192.168.1.0/24. Router R1 forwards the IP Datagram with DIP 192.168.1.255 as a regular Unicast Datagram. Router R2 then floods the IP Datagram over egress ROP, SVI or VxLAN interface with Destination MAC as all 0xFFs. At Ingress, Port Based ACLs (PACL) and VLAN Based ACLs (VACL) can be used to restrict/allow IP Directed Broadcast traffic. Existing Port based ACLs (PACL) can be used to allow or disallow certain IP Directed Broadcast Traffic. An ACL can be configured using the access-list ip command and then applied using the apply access-list ip command as shown in the following output. switch(config)# access-list ip ipdbaclswitch(config)# interface 1/1/1switch(config-if)# apply access-list ipdbacl in Inbound (ingress) traffic out Outbound (egress) trafficswitch(config-if)# int lag 10switch(config-lag-if)# apply access-list ipdbacl in Inbound (ingress) traffic out Outbound (egress) traffic The following is an example of the show running-config command on an ROP interface. switch(config)# interface 1/1/1 no shutdown ip address 192.168.1.1/24 ip directed-broadcast The following is an example of the show running-config command on an SVI interface. switch(config)# vlan 10interface vlan10 no shutdown ip address 192.168.1.1/24 ip directed-broadcast The following is an example of the show running-config command on an L3LAG interface. switch(config)# interface lag 3 no shutdown ip address 192.168.1.1/24 ip directed-broadcast Note: Currently egress ACL is supported only on ROP and LAG interfaces, and not on an SVI interface.. Egress Switch Secure Email and File Transfer Egress Switch Threat Protection Egress Switch Email and Document Classifier Egress Switch Secure Vault 0844 About Egress Switch. Egress Switch 000 is software program developed by Egress Switch under Free license and categorised as Misc software programs. Egress Switch primary

Egress Switch Gateway User Guide

Greater than 500 bytes in monitor port group histogram_pg.When collecting data, the switch uses both the CPU and SDK process, which can affect switchd. Snapshots and logs can occupy a lot of disk space if you do not limit their number.Show Histogram InformationTo show a list of the interfaces with enabled histograms, run the nv show service telemetry histogram interface command:cumulus@switch:~$ nv show service telemetry histogram interfaceInterface ingress-buffer egress-buffer counter --------------------------------------------------------------------------------------- swp1 0,1,2 - tx-byte,rx-byte swp2 - 0,1,8 tx-byte,tx-byteTo show the egress queue depth histogram samples collected at the configured interval for a traffic class for a port, run the nv show interface telemetry histogram egress-buffer traffic-class command.cumulus@switch:~$ nv show interface swp1 telemetry histogram egress-buffer traffic-class 0Time 0-863 864:2303 2304:3743. 3744:5183 5184:6623 6624:8063 8064:9503 9. 504:10943 10944:12383 12384:* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 08:56:19 978065 0 0 0 0 0 0 0 008:56:20 978532 0 0 0 0 0 0 0 0 To show the ingress queue depth histogram samples collected at the configured interval for a priority group for a port, run the nv show interface telemetry histogram ingress-buffer priority-group command.cumulus@switch:~$ nv show interface swp1 telemetry histogram ingress-buffer priority-group 0Time 0-863 864:2303 2304:3743 3744:5183 5184:6623 6624:8063 8064:9503 9. 504:10943 10944:12383 12384:* ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 08:56:19 978065 0 0 0 0 0 0 0 008:56:20 978532 0 0 0 0 0 0 0 0 No single user is starved because of other heavy-hitting users. Fair sharing is automatically enabled for wireless at user level as well as SSID level. ● 802.1p CoS and DSCP field classification is provided, using marking and reclassification on a per-packet basis by source and destination IP address, MAC address, or Layer 4 Transmission Control Protocol/User Datagram Protocol (TCP/UDP) port number. ● Shaped Round Robin (SRR) scheduling helps ensure differential prioritization of packet flows by intelligently servicing the ingress queues and egress queues. Weighted Tail Drop (WTD) provides congestion avoidance at the ingress and egress queues before a disruption occurs. Strict priority queuing helps ensure that the highest priority packets are serviced ahead of all other traffic. ● The Cisco Committed Information Rate (CIR) function provides bandwidth in increments as low as 8 Kbps. ● Rate limiting is provided based on source and destination IP address, source and destination MAC address, Layer 4 TCP/UDP information, or any combination of these fields, using QoS ACLs (IP ACLs or MAC ACLs), class maps, and policy maps. ● Eight egress queues per port for wired traffic and four egress queues for wireless help enable differentiated management of different traffic types across the stack for wired traffic. Up to 2000 aggregate policers are available per switch. Application visibility and control using Flexible NetFlow Cisco IOS Software FNF is the next generation in flow visibility technology, allowing optimization of the network infrastructure, reducing operation costs, and improving capacity planning and security incident detection with increased flexibility and scalability. The Cisco Catalyst 3850 provides optimized application visibility with FNF across wired plus wireless. The switch is capable of up to 48,000 flow entries on 48-port models and up to 24,000 flow entries on 12-port and 24-port models across wired plus wireless. With UADP ASIC, Cisco Catalyst

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April 7, 2022 Network Techs ContentsTopologySwitched Port Analyzer (SPAN) ConfigurationSPAN Capture and verificationDelete a SPAN monitor sessionTopologySwitched Port Analyzer (SPAN) ConfigurationThe Switched Port Analyzer (SPAN) feature (sometimes called port mirroring or port monitoring)selects network traffic for analysis by a network analyzer. The network analyzer can be a CiscoSwitchProbe, a Fibre Channel Analyzer.Create a SPAN monitor session and specify the source and destination:Configure SPAN Source:Switch(config)#monitor session 1 source interface Fa0/1 ? , comma - hyphen both SPAN copies both egress and ingress traffic rx SPAN copies only ingress traffic tx SPAN copies only egress traffic Switch(config)#monitor session 1 source interface Fa0/1Ingress source (Rx): Traffic entering the switch through this source port is copied to the SPANdestination port.Egress source (Tx): Traffic exiting the switch through this source port is copied to the SPANdestination port.Configure SPAN Destination:monitor session 1 destination interface Fa0/2Full Configuration:monitor session 1 source interface Fa0/1 bothmonitor session 1 destination interface Fa0/2SPAN Capture and verificationWe will create an interface VLAN in the switch, that we will use to ping from the PC:interface Vlan1 ip address 172.31.120.254 255.255.255.0We start a ping from the PC to the interface VLAN:Check the capture in the Sniffer:Delete a SPAN monitor sessionwe just need to add “no” keyword and specify the id of the monitor session to delete:Switch(config)#no monitor session 1

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Beremoved,added, or remained as is when the packet is sent to the egress port (destinationport). Eachport has dedicated control on the egress VLAN tag format. The tag formatsinclude:UntaggedTaggedUnmodifiedThe Egress VLAN Tag table includes 4096 entries for VLAN tagging selection. Property Description disabled (yes | no; Default: no) Enables or disables Egress VLAN Tag table entry. tagged-ports (ports) Ports which are tagged in egress. vlan-id (0..4095) VLAN id which is tagged in egress.Ingress/Egress VLAN TranslationThe Ingress VLAN Translation table allows for up to 15 entries for each port. One or multiple fields can be selected from packet header for lookup in theIngress VLAN Translation table. The S-VLAN or C-VLAN or both configured in the first matched entry is assigned to the packet.Sub-menu: /interface ethernet switchingress-vlan-translationSub-menu: /interface ethernet switchegress-vlan-translation Property Description customer-dei (0..1; Default:none) Matching DEI of the customer tag. customer-pcp (0..7; Default:none) Matching PCP of the customer tag. customer-vid (0..4095; Default:none) Matching VLAN id of the customer tag. customer-vlan-format (any |priority-tagged-or-tagged | tagged | untagged-or-tagged; Default:any) Type of frames with customer tag for which VLAN translation rule isvalid. disabled (yes | no; Default: no) Enables or disables VLAN translation entry. new-customer-vid (0..4095; Default:none) The new customer VLAN id which replaces matching customer VLAN id. If set to 4095 and ingress VLAN translation is used, then traffic is dropped. new-service-vid (0..4095; Default:none) The new service VLAN id which replaces matching service VLAN id. pcp-propagation (yes | no; Default:no) Enables or disables PCP propagation. If the port type is Edge, the customer PCP is copied from the service PCP. If the port type is Network, the service PCP is copied from the customer PCP. ports (ports) Matching switch ports for VLAN translation rule. protocol (protocols; Default:none) Matching Ethernet protocol. (only for Ingress VLAN Translation) sa-learning (yes | no; Default:no) Enables or disables source. Egress Switch Secure Email and File Transfer Egress Switch Threat Protection Egress Switch Email and Document Classifier Egress Switch Secure Vault 0844 About Egress Switch. Egress Switch 000 is software program developed by Egress Switch under Free license and categorised as Misc software programs. Egress Switch primary

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The following example shows the configuration options for SyncE when ql-selection mode is disabled. Generally, North American SONET networks do not use the automatic reference selection mechanisms. If SyncE is being added into such a network, it would likely have ql-selection set to disabled. *A:PE-1# configure card 1 mda 1 - mda - no mda : [1..2] access + Configure access MDA parameters atm + Configure ATM MDA parameters clock-mode - Configure clock mode and timestamp frequency egress + Configure egress MDA parameters egress-xpl + Configure egress MDA XPL interface error parameters [no] fail-on-error - Configure the behavior of the MDA state when an error is detected [no] hi-bw-mcast-src - Enable/disable allocation of resources for high bandwidth multicast streams ingress + Configure ingress MDA parameters ingress-xpl + Configure ingress MDA XPL interface error parameters [no] mda-type - Provisions/de-provisions an MDA to/from the device configuration for the slot named-pool-mode + Enable/Disable named pool mode network + Configure network MDA parameters [no] shutdown - Administratively shut down an mda [no] sync-e - Enable/Disable Synchronous Ethernet SyncE is enabled on MDA 1 of card 1 as follows: *A:PE-1# configure card 1 mda 1 sync-e After syncE is enabled, the configuration of MDA 1 is as follows *A:PE-1# configure card 1 mda 1 *A:PE-1>config>card>mda# info detail ---------------------------------------------- mda-type m4-10gb-xp-xfp sync-e named-pool-mode ingress no named-pool-policy exit egress no named-pool-policy exit exit ingress exit ingress-xpl threshold 1000 window 60 exit egress no hsmda-pool-policy hsmda-agg-queue-burst no low-burst-multiplier no high-burst-increase exit exit egress-xpl threshold 1000 window 60 exit no fail-on-error network ingress pool default no amber-alarm-threshold no red-alarm-threshold resv-cbs default slope-policy "default" exit queue-policy "default" exit egress pool default no amber-alarm-threshold no red-alarm-threshold resv-cbs default slope-policy "default" exit exit exit access ingress pool default---snip--- The synchronous interface timing can be configured with the following parameters: *A:PE-1# configure system sync-if-timing - sync-if-timing abort - Discard the changes that have been made to sync interface timing during a session begin - Switch to edit mode for sync interface timing - use commit to save or abort to discard the changes made in a session bits + Configure parameters for the Building Integrated Timing Supply (BITS) commit - Save the changes made to sync interface timing during a session ptp + Configure parameters for Precision Timing Protocol (PTP) timing reference [no] ql-minimum - Configure the minimum quality level of the input [no] ql-selection - Enable/disable reference selection based on quality-level [no]