Adding rule to ebtables to drop multicast packets in kernel. This was
done to address a bug where NS packets were flooding ports with
duplicate packets.
Signed-off-by: Nikola Dancejic <ndancejic@microsoft.com>
Fix IPV6 forced-mgmt-route not work issue
Why I did it
IPV6 forced-mgmt-route not work
When add a IPV6 route, should use 'ip -6 rule add pref 32764 address' command, but currently in the template the '-6' parameter are missing, so the IPV6 route been add to IPV4 route table.
Also this PR depends on #17281 , which will fix the IPV6 'default' route table missing in IPV6 route lookup issue.
Microsoft ADO (number only):24719238
- Why I did it
Improve boot performance mostly needed for fast and warmboot
- How I did it
Use cached variable.
- How to verify it
Boot the system. Simply do "systemd-analyze blame" and look at service start time.
Signed-off-by: Stepan Blyschak <stepanb@nvidia.com>
Change orchagent stuck message from ERR to WARNING
#### Why I did it
During switch initialization, sometime Orchagent will busy for more than 40seconds and will trigger process stuck workdog error.
To improve this issue, change watchdog error message to warning message.
##### Work item tracking
- Microsoft ADO: 26517622
#### How I did it
Change orchagent stuck message from ERR to WARNING.
#### How to verify it
Pass all UT.
### Description for the changelog
Change orchagent stuck message from ERR to WARNING.
### Why I did it
Disable eventd at buildtime for slim images
##### Work item tracking
- Microsoft ADO **(number only)**:26386286
#### How I did it
Add flags for disabling eventd and only copy rsyslog conf files when eventd is included and not slim image
#### How to verify it
Manual testing
Why I did it
For some devices with small memory, after upgrading to the latest image, the available memory is not enough.
Work item tracking
Microsoft ADO (number only):
26324242
How I did it
Disable restapi feature for LeafRouter which with slim image.
How to verify it
verified on 7050qx T1 (slim image), restapi disabled
verified on 7050qx T0 (slim image), restapi enabled
verified on 7260 T1 (normal image), restapi enabled
Fix can't access IPV6 address via management interface because 'default' route table does not add to route lookup issue.
#### Why I did it
When device set with IPV6 TACACS server address, and shutdown all BGP, device can't connect to TACACS server via management interface.
After investigation, I found the IPV6 'default' route table does not add to route lookup:
admin@vlab-01:~$ ip -6 rule list
1001: from all lookup local
32765: from fec0::ffff:afa:1 lookup default
32766: from all lookup main
admin@vlab-01:~$
As compare:
admin@vlab-01:~$ ip -4 rule list
1001: from all lookup local
32764: from all to 172.17.0.1/24 lookup default
32765: from 10.250.0.101 lookup default
32766: from all lookup main
32767: from all lookup default <== 'default' route table exist in IPV4 route lookup
Issue fix by add 'default' route table to route lookup with following command:
admin@vlab-01:~$ sudo ip -6 rule add pref 32767 lookup default
admin@vlab-01:~$ ip -6 rule list
1001: from all lookup local
32765: from fec0::ffff:afa:1 lookup default
32766: from all lookup main
32767: from all lookup default <== 'default' route table been added to IPV6 route lookup
admin@vlab-01:~$
##### Work item tracking
- Microsoft ADO: 25798732
#### How I did it
When management interface using 'default' route table, add 'default' route table to IPV6 route lookup.
#### How to verify it
Pass all UT.
Add new UT to cover this change.
Manually verify issue fixed:
### Tested branch (Please provide the tested image version)
- [x] master-17281.417570-2133d58fa
#### Description for the changelog
Fix can't access IPV6 address via management interface because 'default' route table does not add to route lookup issue.
- Why I did it
Improve boot performance mostly needed for fast and warmboot
- How I did it
Use cached variable.
- How to verify it
Boot the system. Simply do "systemd-analyze blame" and look at service start time.
Signed-off-by: Stepan Blyschak <stepanb@nvidia.com>
### Why I did it
Fix the issue detected by[ TestStaticMgmtPortIP::test_dynamic_dns_not_working_when_static_ip_configured ](https://github.com/sonic-net/sonic-mgmt/blob/master/tests/dns/static_dns/test_static_dns.py#L105C9-L105C63) test.
### How I did it
Query MGMT interface configuration. Do not apply dynamic DNS configuration when MGMT interface has static IP address.
#### How to verify it
Run `tests/dns/static_dns/test_static_dns.py` sonic-mgmt tests.
Fix the fsck check which is not working. Potentially fixes#16938
Modified fsck script to run on the ext4.fsck on the appropriate disk where SONiC resides
Microsoft ADO: 26098631
Why I did it
Align the keywords to make qos configuration take effect
Work item tracking
Microsoft ADO (number only):
How I did it
Change the keyword to ComputeAI
How to verify it
reload minigraph and check the qos configuration
* Reserve tcp port for telemetry and gnmi
* Use ip_local_port_range instead
* Fix sysctl config
Co-authored-by: ganglv <88995770+ganglyu@users.noreply.github.com>
- Why I did it
Optimize syslog rate limit feature for fast and warm boot
- How I did it
Optimize redis start time
Don't render rsyslog.conf in container startup script
Disable containercfgd by default. There is a new CLI to enable it (in another PR)
- How to verify it
Manual test
Regression test
Why I did it
Each release branch needs to have release number set.
Work item tracking
Microsoft ADO (number only):
How I did it
How to verify it
This PR test.
- Why I did it
Mellanox MSN2410 platforms have a non-functional error log: "ERR pmon#sensord: Error getting sensor data: dps460/#10: Can't read". This error is because of a firmware issue with some PSU, we are not able to upgrade the FW online. Since there is no functional impact, this error log can be ignored safely
- How I did it
Add a new rsyslog rule to the rsyslog-container.conf.j2, if the docker name is pmon and the platform name matches, the new rule will be inserted into the docker rsyslogd.conf
- How to verify it
run regression on the MSN2410 platform to make the error log will not be printed to the syslog.
Signed-off-by: Kebo Liu <kebol@nvidia.com>
[arp_update]: Flush MAC mismatch neighbors
- Check for MAC mismatch between neighbor entries in the kernel and APPL_DB
- Flush any entries with a mismatch
Change DHCP rate limit in SONiC copp configuration to 100 PPS as this is
necessary to ensure that DHCP flood does not cause LACP/BGP flaps in all
scenarios
This is an extension to the change in image_config: copp: Enable rate limiting
for bgp, lacp, dhcp, lldp, macsec and udld #14859 and sonic-mgmt change in
[tests/copp]: Update copp mgmt tests to support new rate-limits sonic-mgmt#8199
Why I did it
300 PPS is not sufficient to prevent LACP/BGP flaps in all cases. 100 PPS seems to
provide better resiliency against DHCP traffic flood to CPU.
Microsoft ADO 25776614:
Send DHCP broadcast packets to DUT and verify that they are trapped to CPU at 100 PPS.
Signed-off-by: Prabhat Aravind <paravind@microsoft.com>
What I did:
In Chassis TSA mode Loopback0 Ip's of each LC's should be advertise through e-BGP peers of each remote LC's
How I did:
- Route-map policy to Advertise own/self Loopback IP to other internal iBGP peers with a community internal_community as define in constants.yml
- Route-map policy to match on above internal_community when route is received from internal iBGP peers and set a internal tag as define in constants.yml and also delete the internal_community so we don't send to any of e-BGP peers
- In TSA new route-map match on above internal tag and permit the route (Loopback0 IP's of remote LC's) and set the community to traffic_shift_community.
- In TSB delete the above new route-map.
How I verify:
Manual Verification
UT updated.
sonic-mgmt PR: sonic-net/sonic-mgmt#10239
Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>
Sub PRs:
sonic-net/sonic-host-services#84
#17191
Why I did it
According to the design, the database instances of DPU will be kept in the NPU host.
Microsoft ADO (number only): 25072889
How I did it
To follow the multiple ASIC design, I assume a new platform environment variable NUM_DPU will be defined in the /usr/share/sonic/device/$PLATFORM/platform_env.conf. Based on this number, NPU host will launch a corresponding number of instances for the DPU database.
Signed-off-by: Ze Gan <ganze718@gmail.com>
Why I did it
Share docker image to support gnmi container and telemetry container
Work item tracking
Microsoft ADO 25423918:
How I did it
Create telemetry image from gnmi docker image.
Enable gnmi container and disable telemetry container by default.
How to verify it
Run end to end test.
Why I did it
It was observed that a flood of DHCP packets without rate-limiting can cause BGP flaps or lacp keepalive losses.
This change attempts to prevent or reduce such BGP flaps by enabling appropriate rate-limiting in SONiC for all traffic types.
Work item tracking
Microsoft ADO 17964421:
How I did it
Set a reasonable CIR/CBS value of 300 for queue4_group3 (dhcp, lldp, macsec) and 6000 for queue4_group1.
The value 300 was arrived at after testing with dhcp flooding using ptf (using multiple threads). Throttling at this rate was necessary to ensure that dhcp flooding does not cause BGP flaps.
How to verify it
Verified with this script running from ptf, that BGP flaps don't happen when CBS/CIR is set at 300 for queue4_group3.
import threading
from scapy.all import *
def send_dhcp_discover(intf):
dhcp_discover = Ether(dst='ff:ff:ff:ff:ff:ff',src=RandMAC()) \
/IP(src='1.1.1.1',dst='255.255.255.255') \
/UDP(sport=68,dport=67) \
/DHCP(options=[('message-type','discover'),('end')])
sendp(dhcp_discover,count=100000,iface=intf)
if __name__ == "__main__":
t1 = threading.Thread(target=send_dhcp_discover, args=("eth1",))
t2 = threading.Thread(target=send_dhcp_discover, args=("eth2",))
t1.start()
t2.start()
t1.join()
t2.join()
Verified on Arista-7260CX3-D108C8 running 202012 that the copp rule for queue4_group1 and queue4_group3 do NOT affect BGP packets. To verify this using PTF, the copp rules were modified to set the "CBS" and "CIR" for queue4_group1 and queue4_group3 at 600pps and 50k packets each of "BGP open" and "DHCP Discover" were simultaneously sent from the same PTF port to the DUT. It was verified using "show c cpu" that packets are hitting the cpu queue at 1200 pps (double the configured CIR/CBS for these packet types). This helped conclude that throttling rate is per trap (or packet type) and not per queue.
Verified with updated sonic-mgmt tests ([tests/copp]: Update copp mgmt tests to support new rate-limits sonic-mgmt#8199) on broadcom and mellanox platforms that these traffic types are rate-limited.
Signed-off-by: Prabhat Aravind <paravind@microsoft.com>
- Why I did it
Mellanox MSN2700 platforms have a non-functional error log: "ERR pmon#sensord: Error getting sensor data: dps460/#10: Can't read". This error is because of a firmware issue with some PSU, we are not able to upgrade the FW online. Since there is no functional impact, this error log can be ignored safely.
- How I did it
Add a new rsyslog rule to the rsyslog-container.conf.j2, if the docker name is pmon and the platform name matches, the new rule will be inserted into the docker rsyslogd.conf
- How to verify it
run regression on the MSN2700 platform to make the error log will not be printed to the syslog.
Signed-off-by: Kebo Liu <kebol@nvidia.com>
* Reduce SONiC image filesystem size
Add a build option to reduce the image size.
The image reduction process is affecting the builds in 2 ways:
- change some packages that are installed in the rootfs
- apply a rootfs reduction script
The script itself will perform a few steps:
- remove file duplication by leveraging hardlinks
- under /usr/share/sonic since the symlinks under the device folder are lost during the build.
- under /var/lib/docker since the files there will only be mounted ro
- remove some extra files (man, docs, licenses, ...)
- some image specific space reduction (only for aboot images currently)
The script can later be improved but for now it's reducing the rootfs
size by ~30%.
* restore fully featured vim package
Why I did it
Networking devices need to be responsive. Such responsiveness is harmed when the CPU change state.
There is a latency penalty when a CPU is idle (e.g C2) and need to exit this state to come back to C1 state.
To prevent this from happening the CPU should be forced to remain in C1 state.
How I did it
Generalize the cstate forcing to C1 to all Arista products.
This is done by adding processor.max_cstate=1 to the kernel cmdline for all CPUs.
Additionally Intel CPUs also need intel_idle.max_cstate=0 to fallback to the acpi_idle driver.
How to verify it
Check that processor.max_cstate=1 is present on the cmdline for AMD CPUs
Check that both processor.max_cstate=1 and intel_idle.max_cstate=0 are present on the cmdline for Intel CPUs
Openssh in Debian Bullseye has been updated to 1:8.4p1-5+deb11u2 to fix CVE-2023-38408.
Since we're building openssh with some patches, we need to update our version as well.
Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>
* [buffers] Add create_only_config_db_buffers.json for MLNX devices (not MSFT SKU), inject it at the start of the swss docker
Signed-off-by: vadymhlushko-mlnx <vadymh@nvidia.com>
* [buffers] Align the sonic-device_metadata.yang
Signed-off-by: vadymhlushko-mlnx <vadymh@nvidia.com>
---------
Signed-off-by: vadymhlushko-mlnx <vadymh@nvidia.com>
Why I did it
Fix: #16699
Fast reboot is failing from old OS versions (eg., 201911 image) to latest (eg., master branch) after PR #15685
The system wide flag for FAST_REBOOT is still required when the base OS version does not support the new fast-reboot reconciliation logic (no db dump)
Add alternate name eth1-midplane to Linux bridge br1 created on supervisor on some chassis platforms.
See description here: #16504
Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>
Fix tcpdump report error when tacacs enabled.
Why I did it
Fix tcpdump report error when tacacs enabled:
Sep 1 09:25:18.189395 vlab-01 ERR tcpdump: nss_tacplus: /etc/tacplus_nss.conf fopen failed
Sep 1 09:25:18.189606 vlab-01 ERR tcpdump: nss_tacplus: bad config or server line for nss_tacplus
This is because debian add a patch create AppArmor profile for resource access control. The profile need update to allow tcpdump access /etc/tacplus_nss.conf.
Work item tracking
Microsoft ADO: 17667308
How I did it
Modify tcpdump AppArmor profile, add new line to allow tcpdump access TACACS config file:
/etc/tacplus_nss.conf r,
### Why I did it
syncd events should have tag sonic-events-syncd, not sonic-events-host. Created a new conf file which will have syncd events
##### Work item tracking
- Microsoft ADO **(number only)**:17747466
#### How I did it
Code change
#### How to verify it
Pipeline
