Cisco switch dropping packets. ]) Have a peculiar problem.

Cisco switch dropping packets You can get some cushion if you tune the buffers but it cannot guarantee a zero output drop scenario. 19 PING 192. I factory cleared the 4404 and started over and still dropping packets. I have a RTR that is dropping packets from a group of PCs. What would cause a switch to discard packets on a specific VLAN but only out to the I have use a cisco 3560 switch and an Hp-aruba M3810 switch for the test with same behaviour. What exactly does memory-size iomem 10 do? I know it determines how much dram can be used but used for what? Withtheshow drop command,youcanidentify: •Thereasonforpacketdrop. When somebody starts a file copy from their client workstation off a file server, th Cisco IOS Software, Catalyst 4500 L3 Switch Software, Version 12. ciscoasa# show asp drop. cisco. 18 source 192. I have tried to create an equivalent LAG port on the Dell VRTX switch but this 0 switch ingress policy drops. The feature is running for about 2 weeks and everything seems to be working fine but the "show ip dhcp snooping stat" command shows that a high percentage the DHCP packets are being dropped by the switches. 50 count 20 packet-size 1472 PING 10. however this is impacting performance. Enhanced Packet Drop Analyzer allows you to configure traps to punt dropped packets to a CPU based destination for the purpose of troubleshooting. Connectivity works as expected. But 2960s drops the most in large numbers. Hello, attached are the configuration files and the output of show vpc brief for the four switches. Look at the output drops in the attached picture. Their production LAN has 2 “live” switches and 1 spare. 7. 96 clients across 8 VLANs picked up appropriate IP addresses Cisco Packet Tracer: Software de Simulación para Redes; 200-301 CCNA Study Materials; Packet Hello guys i need your help to find a way to see if my switch is dropping any packets bigger than 1500 bytes. I have tried using both copper and fiber GBIC's and still get the same result. Servers are on their own VLAN, and plugged directly into the sg300. I also thought larger size packets should be more prone to drops but it seems for the smaller packets the switch buffers dont even get filled before the packets start to drop. SE . You can use the command monitor session to create a SPAN session and capture traffic. x repeat 100 will drop 20-40 packets. the foundry is not seeing any. I am getting very bad packet loss b Hi, Try issuing this command : show platform qos queue stats gi 1/0/3 ==> this command reveals in which queue the packet are enqued/dropped. #ping x. I am struggling with the question as to when a switch drops a packet and when switch flood all ports except port on which received packet to determine where to send packet. I checked both G0/1 and router interface (fiber optic connection) for speed differenc We are having a problem with a couple of pieces of equipment on our network not responding to ping and/or dropping it's connection to the server. show int gi1/0/1 GigabitEthernet1/0/1 is up, line protocol is up (connected) Hardware is Gigabit Ethernet, address is 9077. Clearly there's an issue with the application. This chapter provides information on how to troubleshoot issues related to packet drops on Cisco Catalyst 8000V instances. I have a switched network in my Data center with 8-10 switches. Identify Packet Drops. TX 154134499786 unicast packets 6240518 multicast packets 559664 broadcast pa ckets 154141299968 output packets 796781312922182 bytes 98230397218 jumbo packets DHCP relay agent dropping DCHPOFFERs on return journey in Packet While practicing my switch configuration I had the DHCP Server directly attached to DistroSw1 and everything was fine. Switch101 and switch102 are vPC peer, and switch201 and switch202 are another vPC peer. 4881) Description: Meraki AP-12 MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full Community, We are experiencing an odd situation where 1 of our 200 vlans is dropping packets to end hosts. Out of these 13 switches, randomly there are packet drops. No drops occur for following: - From switch to switch passing through Nexus I keep getting many "Drop Events", or dropped packets (as seen in the attachment). This document is primarily for engineers who need immediate assistance in order to troubleshoot connectivity and/or performance problems on a Nexus 5000 switch. I have a Cisco 6500 with a gig link to a foundry switch. But, my question is, why does the switch drop the first discovery packet? Packet captures taken at both ends of the exchange show that it never makes it to the client. 0 0 0 0 0 STATIC_IP_VIOLATION 0 0 0 0 0 FPM_DROP_PACKET 0 0 0 0 0 IGR_EXCEPTION_L4_ERROR 3223830107 3224161936 331829 0 0 IGR_EXCEPTION_L5_ERROR 6727 6728 1 0 0 Hello, We are trying to use SPAN session in Catalyst 3750G-24T switch. I noticed the tool show per individual switch an amount of 20,000 packets drops and in some other switches up to 35,000 packets drops. This may cause the packets to be dropped at the interface of a managed device before they are processed by Snort. The Device is the new phone system, an Avaya IP Office 500 V2 R11. HostA and HostB The failover unit's interface shows up, no errors. Interface buffers are a limited resource and can only absorb a burst up to a point after which packets can drop. 4, which has intermittent packet/connection drops, sometimes really bad drops where video will cut out or audio will drop, when having teams calls or streaming. Both are in same subnet , so router /routing is out of picture. Check if the interface continues to drop packets. 1q frame tag. 1x configured in the access switches and port-security in the aggregation/core switch, I have configured port-security protect mode, otherwise the 581276871 packets input, 403227429391 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 532501331 packets output, 355693860967 bytes, 0 underruns Hi all, I have a C2970 Switch and I am having some real bad packet loss. Cisco Catalyst 9300 2. Both ports are 1gig FD, Flowcontrol disabled, MTU 1500. Cisco ASA-5505 on-board accelerator (revision 0x0) Hi dears, I want to know how a switch rate-limiting feature drops packets. e. |------- I don't really understand why a few specific ip addresses would be dropped while the majority pass through. Kindly suggest solution, customer is dropping connections to their servers. Any help in this matter would be appreciated. 6439610 packets output, 5392606578 bytes, 0 underruns. ee6f. I configured two ports to VLAN20 and the rest are on VLAN1. Specifically, we are seeing RTP packets sequence losing a few packets here and there over a UDP session. Hi Our Company name is Techset Composition India Pvt. They purchased 5 SG300-52’s for 2 different networks. 5 minute input rate 17000 bits/sec, 21 packets/sec . 10. Carmel is a 55xx ASIC. At the same time Observing CPU high due to PID 9 which belongs to ARP Input. suspect is spanning tree configuration or misconfiguration but there is no blocked ports or any errors or core switch overload. 2(54)SG and having an issue with one device receiving a DHCP address. on the other side the cell side interface : 7 zers on BW. 11. To be clear though, it's not dropping random packets to these ip addresses, no packets seem to make it to these ip addresses at all. Note: Gatos is a 50x0 ASIC. In your case, the output drops counter is actually 0, which indicates that the switch is not dropping packets. You're dropping 100% of your packets! Cisco links documentation to troubleshoot output drops here: https://www. There are no real "errors" or issues that I can see otherwise. Switch’s CPU and Memory load always vary Hi Ibrahim, I would appreciate if you could add more information to this post of yours. This burst traffic has very little chance to get 1000M interface capability. Sometimes a bug in a switch software also keeps interface stats from being correctly updated. I have just discovered that the LAG port is dropping packets. 00% packet loss switch102# show ip arp Hello, I have a topology as below. 18) from 192. Is there anything wrong with packets dropping here, would 0. 02. 19: 56 data bytes Request 0 timed out Request 1 timed out Request 2 timed out Request 3 timed out Request 4 timed out --- 192. 5. you can search for rfc2544 test. Perform packet captures on the Nexus switches to trace where the ICMPv6 packets are being dropped. Is there any command I can monitor the real time traffic on the interface? Thanks. I am running a transparency test for NCS 520. THE MILK: put ip helper-address command on your clients gateway if your client and DHCP server are on two different subnets; configure trust relationships on any L2 device all the way to the DHCP from that point forward (including the clients gateway) with the ip dhcp relay information trust-all command. 1334 switch ingress policy drops 4 packets output, 256 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 babbles, 0 late collisions, 0 deferred 0 lost carrier, 0 no carrier 0 rate limit drops 0 switch egress policy drops FW-# I have checked there is no port security on the switch or the port is err-disabled on the switch. Enable priority queue on this interface. We have 10 units of 2960s, 1 – 2960x, 1 – 2960XR & 1 – 3750s. The cisco is showing large amounts of packet drops on its A switch will flood the packet out all other ports when it doesn't know the destination MAC address. I ran the Cisco CLI Analyzer tool on one of our switches and it recommended running the following commands. We have a customer who we sent to Cisco to replace some aging Dell switches. ; Don't put more than one ip helper-address command along It seems you're experiencing an issue that could be related to the Nexus switches handling of IPv6 traffic, especially in a mixed environment with both vPC and orphan ports involved. However, what I was suggesting, as many L2 switches incorporate L3 features, in theory a "smart" L2 switch could too. onl Hello, I have a topology as below. Plus it ONLY affects VLAN 100. All the switches are Nexus 93180-EX HostA is connecting to swtich101 with a orphan port (port-channel) HostB is connecting to switch201/switch202 with vPC link. 0 output errors, The overall problem is that the users experience their internet connectivity basically drop during the times packets are being dropped on VLan1. On the switch, no errros, but all recived packets are dropped. I've removed some irrelevant parts, like SNMP settings, for security reasons. 007152: Mar 15 12:03:32. i attached one such result. 2(53)SE2. 007%. For example, a fault F11245 - ingress drop packets rate(l2IngrPktsAg15min:dropRate) is regarding the parameter dropRate in MO l2IngrPktsAg15min. We have been suffering from a significant level of packet drop, and despite the fact we have been troubleshooting on this so long, the issue is still not resolved. 168. We have about 80 Vm's, most of them single app servers not doing much. Assume you send for a minute at 256 kbps towards the interface, i. 3 The information in this document By default, on Catalyst 9000 series switches, egress packet drops are shown in bytes instead of packets. 128 kbps is dropped, and then you stop sending. 50 (10. Turning it up and giving it a basic config returned the same results. Usually with destination not found, but sometimes timed out. I have 2 stacked SG500X-48 port switches connected with 10GB cables. com/c/en/us/support/docs/routers/10000-series I have an access switch which is dropping TONS of packets. 3 Vlans are trunked to this switch over the VPC. 4. I never created an equivalent LAG port on the Dell VRTX switch. I can't find any counters, errors or logs the switch is dropping or not forwarding packets, but it seems to be. Support for this feature was introduced on the Cisco Catalyst 9500X Series Switches. ID GlobalDropStats Packets Octets-----319 BFDoffload 9 1350 61 Icmp 84 3780 53 IpFragErr 32136 48718168 244 IpLispHashLkupFailed 3 213 56 IpsecInput 18 4654 23 TailDrop 26713208 10952799454 216 When DHCP offers are dropping at the switch, it typically indicates a problem with the communication between the DHCP server and the client devices. Enhanced Packet Drop Analyzer. Sometimes you need to issue special ASIC stat commands to see the drops. Workaround: None. That's what blows my mind. Guys, I have a Cisco 6500 with a gig link to a foundry switch. The only traffic at this time from that interface is keep alives with the primary unit. ie, while not plugged into the rest of the LAN. The second hits a few milliseconds later with a TTL of 15. I have tried to research the issue and I can see some of my symptoms are: - What's wrong with my Qos policy it's dropping packets class-map match-any Video match access-group name Video ! policy-map Video class Video priority percent 20 64000000 class class-default bandwidth percent 80 policy-map 100MegShape class class-default shape average 100000000 service-policy Video Yes, a L3 switch, using a L3 port can fragment. OBS: please remember the space between "gi" and "1/0/3" !! We are changing the way you share Knowledge Articles – click to read more! The callmanager is connected to 2960G switch and the core switch is Cisco 4500 series. However, on some switches, the interface drop counter doesn't always reflect drops at the hardware level. DHCP (Dynamic Host Configuration Protocol) is responsible for dynamically assigning IP addresses and other network configuration parameters to devices on a network. 15. show platform qos dscp-cos counters gi 1/0/3 ==> this command reveal the DSCP values seen on ingress and egress packets. Packet Buffer(Software ESMP) allocation failures: 0. Output drops are generally a result of interface over-subscription caused by many to one or a 10gig to 1gig transfer. Really appreciate for your help. The initial issue was there were high Congestion occurs when the destination interface has a number of packets that exceed its output rate. Isolating the printer to it's own network with a small switch and a laptop works fine, the laptop can ping the printer and print normally. Consider that these switches have at Accessing any vlan (In/out) is next to impossible as 40% of packets are dropped. Setup: Pair of Nexus 7K's via VPC connecting to a 4500 switch. 1, you can run the show drops command The information in this document is based on the this hardware and software version, but the methodology and majority of commands can be applied to other Catalyst 9000 series switches on other code: 1. In Cisco ACI, all faults are raised under Managed Objects (MO). I noticed packet drops on the switch interfaces connected to APs: show mls qos interface f3/0/26 statistics output queues enqueued: queue: threshold1 threshold2 threshold3 ---- Switch(config-if)#srr-queue bandwidth share 1 75 25 5 Switch(config-if)#srr-queue bandwidth shape 2 0 0 0. From Cisco IOS XE 17. 18 (192. The percentage of packet loss increases when you increase the icmp packet size. 50): 1472 data b switch102# ping 192. HostA and HostB When VRF Packet Leaking is configured on a Catalyst 4900 series switch with a Supervisor Engine IV, a packet loss of 50 per cent occurs when you ping a Catalyst 4900 series switch VRF interface IP address from a device in the global table. Packets forwarded by Catalyst 4900 series switch are not impacted. The other one 5 mins average is 5M, but still get the packet drop. This type of issue might be caused by various factors such as incorrect configurations, vPC consistency problems, or Hi Horacio, The above show interface will give you only total output drops: 0 If you want to see packet loss between one end and other end you need to use any tool which provide you the network latency and packet loss. Checking for the requests using tcpdump on the DHCP server and on a machine connected to a monitoring port shows that only after 30s (and on the 8th request) does the request make it to the server. This interface is connected to a router that is managed by other team. Hi everbody! I have a dedicated laptop I use to display some features, when I change the wired connection from a switch to another switch, it drops the packets even though I do authenticate correctly, I have 802. When any machine tried to ping to a different VLAN (Subnet), pings dropped on the switch but reaches the destination. I have not observed any errors on switchports or high cpu & menmory utilization on any of switches. All this started just after we installed our PIX 501, so i suspect it may be dropping packets from the INSIDE clients, can somebody review this config rep The first hits the switch with a TTL of 16. I finally moved some network devices from VLAN1 to VLAN20 and now I am getting very bad packet loss from items outside of VLAN20. . Eventually, during one of those cycles packets will magically get forwarded, the machine gets an IP, the broadcast packets are no longer happening and everything continues fine. 816: %SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU Utilizatio 5 minute input rate 18174000 bits/sec, 1635 packets/sec 5 minute output rate 987000 bits/sec, 874 packets/sec 7857516737 packets input, 11024972887275 bytes, 0 no buffer Received 11266737 broadcasts (9893246 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input I have 2 Nexus 5Ks that drop ping packets when pinging between them at 70-90% drop rate. 01, licence metroaccess. When we turn on SPAN monitoring, we see that not all packets are getting copied to the destination port. The cisco is showing large amounts of packet drops on its interface. If that's a case, you then need to issue other commands to see those drops. Packet Buffer(Software EOBC) allocation but this is the only switch that has a high count of "Tx Mode Drop" and "Sa Miss". 3. are pretty useless, when it comes to understand packet drops. Other info (Stack of 3 3850s) - 03. It looks like something else is dropping our sccp packets. Cisco IOS® XE 16. 2 that appears to be dropping valid DHCP requests. I have no idea why the switch is dropping the packets. This action I have a Catalyst 4948 switch running 12. I have 2 Dell access switches that connect to the sg300 in 4 port LAGs each. Enhanced Drop Detection Some time ago I created a LAG port on my SG3000-10 to connect it to a Dell VRTX switch module. For example, as Reza said in the previous post, Nexus switches have Control Plane Policing and if in case your PING's are destined to the Nexus switch, it is an expected behaviour to see packet drops in a regular pattern. This section introduces some of the example Managed Object (MO) related to drop packet faults. It is important to determine whether the amount of output drops found had any actual impact or were simply caused On a switch you typically need to dive deeper to find the cause of dropped packets. Plus our monitoring isn't throwing any flags on throughput. We are highly I have a sg300-52 in layer 3 mode. I have an access switch which is dropping TONS of packets. The 5 minute average would report 20% usage, which could Hi Guys, Recently we discovered that there are packet drops on one of the switch interface in my deployment. Cisco IOS XE 17. It drops the frame" in packet tracer, all vlans and inter vlan routing was configured?. I'd check cabling first, re-terminate the master switch fa0/14 connector - Trunking has to negotiate, native VLANs just pass traffic, if there's a problem on the transmit/receive pairs dropping packets, it would cause your trunk to drop, but may not necessarily show a [noticeable] loss of connectivity on the native VLAN. The scenario is like this Router>>>>>>Switch(3750)>>>>>Router From router to router i can ping with byte size of 1500. My GUESS is I've mismanaged vlan participation and ports are receiving packets for a vlan they don't have Some switches don't always show output drops on the interface drop counters. It drops the frame" in packet tracer, all vlans and inter vlan routing was We have two span ports on different switches. I am observing packet drops when one server is trying to communicate with another servver on LAN. Any packets bigger than 1501 get dropped. 2(25)SEE2, RELEASE SOFTWARE (fc1). 2(50)SG2, RELEASE SOFTWARE (fc2) Packet Buffer(Software Common) allocation failures: 0. Please look at the following question: A switch has 4 ports: Fa0/3, Fa0/4, Fa0/5 and Fa0/6. 12. It seems correct. These packets must be stored in the buffer until they can be transmitted. The following information is available: Switch# show mac address-table We have Cisco Catalyst 4507R running IOS v12. We do not have any ACL in place on the switches either. 2960 - 12. I have used a Netrounds tester to test transparency of I'm looking at the Cisco Network Assistant Tool, for errors and drop packets. However, if packet had the DF bit set, don't know whether a L2 switch could We have dual Cisco 6880 switches in a VSS cluster to handle the traffic. The only thing that I see differnet in the 2611 that these are connected to is the memory-size iomem is manually set to 10. Here's a sample of the symptom: Vlan111 is up, line protocol is up Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 0 unknown protocol drops The negotiation times out and the cycle begins again. I was reported with performance issue so I was checking interface for drops. On the interface there is no drop and the traffic is fairly small (72mbps on 1Gbps link) #sho int g1/0/23 GigabitEthernet1/0/23 is up, line protocol is up (co (BTW, buffer tuning might be the best solution for transient congestion while additional bandwidth is better for sustained congestion, assuming you want to support that. 2 Hello I have a 3650 switch running 16. I am setup with LAG and have the switch configure to only allow the VLAN's needed. I am observing ARP input Queue full and dropping packets. 007% be acceptable and why? # sh interface ethernet 1/3/1 . 1) If the switch is NOT configured for jumbo frame support does the frame always get dropped or are there conditions under which the frame gets fragmented. So suppose a port is sending out 1 Gb traffic and I configure a 500mb egress filter on that port. Ltd. UNI port gi 0/0/3 has an Ethernet service with default encapsulation and NNI port gi-0/0/2 pushes a VLAN tag to frames received from the UNI port. I Everything seemed to be working fine, however, we have discovered that we have occasional random packet dropping. Any suggestions? Hi some questions regarding jumbo frames. Packets in any network may have higher MTU than the default size of 1518 bytes. 8. Nexus7000# ping 10. for the latter, another QoS option, again with QoS enabled, is to "target" low-priority bandwidth hogs for packet dropping while avoiding dropping other traffic's packets. Running a continuous ping gives about a 50% to 60% packet loss. 18 ping statistics --- 5 packets transmitted, 0 packets received, 100. Frame drop: Well unfortunately there was nothing anyone on the other end could do because no matter what we did, power cycle or otherwise the network would not stop dropping packets. On switch i have c Thank you for your response. I even tried another switch and still drop packets. As a result, there will be no corresponding events on the web user interface of a FireSIGHT Management Center. Some of our sccp IP Phone are unable to join the Call Manager. Almost 2 hours later we arrive at the site and notice the Cisco switch is almost none responsive and broadcasting to all connected devices at the same time. (CSCej36831) Hi expert, I have a switch stack made of two WS-C3750G-24TS-1U. 2) If they are always dropped then which type of frames get fragmented ? 3) If jumbo frames support Why does a 2960 switch drop packets from a layer 3 switch, with the message "switch does not have the Vlan indicated on the IEEE 802. My GUESS is I've mismanaged vlan participation and ports are receiving packets for a vlan they don't have configured. It drops the frame" in packet tracer, all vlans and inter vlan routing was Hello, I have a topology as below. The ping drop rate also occurs for the following: - Between access layer switches and 5Ks - Between end user devices/servers and 5K - Between PC and HSRP gateway address on 5K. 1. Does the switch drop one packet from two consecutive packets? or Another rule is applied for dropping packets? does packet leng Perform packet captures on the Nexus switches to trace where the ICMPv6 packets are being dropped. Currently there is a Windows Server running DHCP issuing addresses and every other device can get an IP address except the Solved: Why does a 2960 switch drop packets from a layer 3 switch, with the message "switch does not have the Vlan indicated on the IEEE 802. The original traf Hello, I configured DHCP snooping on our Catalyst 2950 & 2960 series switches. Software release 16. When we ping firewall from some of 2960 switches we get 1ms replay for ~15 times, then time out, then everything resume to work normally for another 20 pings, then another time out, etcetc. Thanks. x. Core Issue When you login to the Nexus 7000 switch and ping continuously any device, you may notice packet losses. According to Cisco TAC after reviewing our packet sniffing We have wireless access points connect to c3750 switches version 12. Almost all switches drop packets. 4881 (bia 9077. The amount foo traffic is minimal yet in Hi out there We have a Cisco 3750 running C3750 Software (C3750-IPBASE-M), Version 12. MTU 9000 bytes, BW 10000000 Kbit (Max: 10000000 Kbit) 3149737804 packets output, 3252555524216 bytes, 0 total output drops Output 609 broadcast packets, 996063 multicast packets 0 output errors, 0 underruns, 0 applique, 0 resets 2376977535 packets input, 1563001136366 bytes, 0 no buffer Received 2402879 broadcasts (245385 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 245385 multicast, 0 pause input 0 input packets with dribble condition detected 3848369562 packets output, 4074227663066 bytes, 0 underruns The dropping rate is: 11325478 / 154134499786 = 0. An example : The larger the packet the more loss. All internal routing is done at core switch. It is pretty basic configured - no QoS etc d Solved: Why does a 2960 switch drop packets from a layer 3 switch, with the message "switch does not have the Vlan indicated on the IEEE 802. If we ping to the switch directly (where we are connected) ping works fine with 0 loss. [I. The wireless performance is slow. We have a lot of voice traffice passing through this switch and through sniffing we can see that it is dropping a lots of RTP packets. ]) Have a peculiar problem. I checked the counters on this interface and all drops are on OutDiscards. I have swapped cables, and switched ports on the Porcurve. Even within all VLAN's packets are dropped, except from VLAN 1 which works just fine. We have people working on that. 5 minute output rate 34000 bits/sec, 20 packets/sec . Solved According to Cisco TAC after reviewing our packet sniffing result, it looks like something is dropping the packet since there is a lot of tcp retransmission on the phone side 0 switch ingress policy drops 41762296 packets output, 10719199183 bytes, 0 underruns 0 pause output, 0 resume output 0 output errors, 0 collisions, 0 interface resets 0 late collisions, 0 deferred 0 rate limit drops 0 switch egress policy drops 0 input reset drops, 0 output reset drops. A switch drops a frame when it is corrupted (FCS). This document describes how to verify packet drops due This document provides helpful tips to view the initial set of hardware drop counters on a Nexus 5000 switch. All the switches are Nexus 93180-EX HostA is connecting to swtich101 with a orphan port Hello, I work at a fintech company, and we provide our clients with real-time market data through our nexus 3548 switches. Output 51 broadcast packets, 701461 multicast packets. The 4500 is layer 2 only, with the SVI's installed via HSRP on the 7k's. qpusj fbif kkyv eitr mym rlfefs agyar xlftiug yoq apr