Overview

These release notes support Cumulus RMP 3.3.2 and describe currently available features and known issues.

Cumulus RMP 3.3.2 supports these features and is available on the Penguin Computing Arctica 4804IP-RMP out-of-band switch.

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What's New in Cumulus RMP 3.3.2

Cumulus RMP 3.3.2 includes bug fixes only.

Installing Version 3.3.2

If you are upgrading from version 3.0.0 or later, use apt-get to update the software.

Cumulus Networks recommends you use the -E option with sudo whenever you run any apt-get command. This option preserves your environment variables — such as HTTP proxies — before you install new packages or upgrade your distribution.

Run apt-get update.
Run apt-get upgrade.
Reboot the switch.

New Install or Upgrading from Versions Older than 3.0.0

If you are upgrading from a version older than 3.0.0, or installing Cumulus RMP for the first time, download the Cumulus RMP 3.3.2 installer for Broadcom switches from the Cumulus Networks website, then use ONIE to perform a complete install, following the instructions in the user guide.

Note: This method is destructive; any configuration files on the switch will not be saved, so please copy them to a different server before upgrading via ONIE.

Important! After you install, run apt-get update, then apt-get upgrade on your switch to make sure you update Cumulus RMP to include any important or other package updates.

Documentation

You can read the technical documentation here.

Issues Fixed in Cumulus RMP 3.3.2 Update 2017-07-14

Cumulus Networks has made important package updates available for Cumulus RMP 3.3.2 that resolve the issues listed below. These fixes were applied to the Cumulus Networks repository on July 14, 2017.

Cumulus Networks strongly recommends you upgrade your Cumulus RMP distribution to avoid these issues (do not do a binary install). Follow these steps:

Run apt-get update.
Run apt-get upgrade.

Release Note ID	Summary	Description
RN-637 (CM-16222)	Cannot configure VLAN filtering/pruning using NCLU	Running `net add interface swp# bridge vids <vid>` does not add a `bridge-vids` configuration under an interface. This issue has been fixed in the July 14, 2017 update release to Cumulus RMP 3.3.2.
RN-638 (CM-16966)	NCLU netd service crashes if sysname is missing in LLDP output	If the sysname information is not included in the LLDP peer information, `netd` crashes when running `net show interface`. This issue has been fixed in the July 14, 2017 update release to Cumulus RMP 3.3.2.
RN-639 (CM-12534)	`netshow int all -j` returns traceback AttributeError: 'super' object has no attribute 'stp'	If a bridge is configured with STP disabled, the `netd` daemon returns a traceback error. This issue has been fixed in the July 14, 2017 update release to Cumulus RMP 3.3.2.

Issues Fixed in Cumulus RMP 3.3.2

The following is a list of issues fixed in Cumulus RMP 3.3.2 from earlier versions of Cumulus RMP.

Release Note ID	Summary	Description
RN-632 (CM-16783)	rsyslog stops logging after 4M filesize after upgrade to 3.3.1	A change in the upgrade process from earlier releases caused a necessary file to be removed, preventing logging from occurring correctly. Customers upgrading to Cumulus RMP 3.3 or later from either Cumulus RMP 3.0.x or 3.1.x should check that the `/etc/logrotate.d/ryslog` file exists. If it does not, reinstall `rsyslog` with the following command: `apt-get -o DPkg::options::=--force-confmiss --reinstall install rsyslog` This issue is fixed in Cumulus RMP 3.3.2.
RN-634 (CM-16292)	net show interface slow to return results	The NCLU command `net show interface` takes approximately 9 seconds to return results. This issue is fixed in Cumulus RMP 3.3.2.
RN-635 (CM-15954)	rmp/3.2.1 - knet link txq status reports stopped for unit 0 ports, HOL_DROPs accruing for affected xe port	An issue was found on Broadcom switches running Cumulus RMP, where the hardware was not passing the queued packets, causing the queues to be suspended. This issue has been fixed in Cumulus RMP 3.3.2.

Known Issues in Cumulus RMP 3.3.2

Issues are categorized for easy review. Some issues are fixed but will be available in a later release.

Release Note ID	Summary	Description
RN-56 (CM-343)	IPv4/IPv6 forwarding disabled mode not recognized	If either of the following is configured: net.ipv4.ip_forward == 0 or: net.ipv6.conf.all.forwarding == 0 The hardware still forwards packets if there is a neighbor table entry pointing to the destination.
RN-120 (CM-477)	ethtool LED blinking does not work with switch ports	Linux uses `ethtool -p` to identify the physical port backing an interface, or to identify the switch itself. Usually this identification is by blinking the port LED until `ethtool -p` is stopped. This feature does not apply to switch ports (swpX) in Cumulus RMP.
RN-121 (CM-2123)	ptmd: When a physical interface is in a PTM FAIL state, its subinterface still exchanges information	Issue: When ptmd is incorrectly in a failure state and the Zebra interface is enabled, PIF BGP sessions are not establishing the route, but the subinterface on top of it does establish routes. If the subinterface is configured on the physical interface and the physical interface is incorrectly marked as being in a PTM FAIL state, routes on the physical interface are not processed in Quagga, but the subinterface is working. Steps to reproduce: cumulus@switch:$ sudo vtysh -c 'show int swp8' Interface swp8 is up, line protocol is up PTM status: fail index 10 metric 1 mtu 1500 flags: <UP,BROADCAST,RUNNING,MULTICAST> HWaddr: 44:38:39:00:03:88 inet 12.0.0.225/30 broadcast 12.0.0.227 inet6 2001:cafe:0:38::1/64 inet6 fe80::4638:39ff:fe00:388/64 cumulus@switch:$ ip addr show \| grep swp8 10: swp8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 500 inet 12.0.0.225/30 brd 12.0.0.227 scope global swp8 104: swp8.2049@swp8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP inet 12.0.0.229/30 brd 12.0.0.231 scope global swp8.2049 105: swp8.2050@swp8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP inet 12.0.0.233/30 brd 12.0.0.235 scope global swp8.2050 106: swp8.2051@swp8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP inet 12.0.0.237/30 brd 12.0.0.239 scope global swp8.2051 107: swp8.2052@swp8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP inet 12.0.0.241/30 brd 12.0.0.243 scope global swp8.2052 108: swp8.2053@swp8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP inet 12.0.0.245/30 brd 12.0.0.247 scope global swp8.2053 109: swp8.2054@swp8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP inet 12.0.0.249/30 brd 12.0.0.251 scope global swp8.2054 110: swp8.2055@swp8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP inet 12.0.0.253/30 brd 12.0.0.255 scope global swp8.2055 cumulus@switch:$ bgp sessions: 12.0.0.226 ,4 ,64057 , 958 , 1036 , 0 , 0 , 0 ,15:55:42, 0, 10472 12.0.0.230 ,4 ,64058 , 958 , 1016 , 0 , 0 , 0 ,15:55:46, 187, 10285 12.0.0.234 ,4 ,64059 , 958 , 1049 , 0 , 0 , 0 ,15:55:40, 187, 10285 12.0.0.238 ,4 ,64060 , 958 , 1039 , 0 , 0 , 0 ,15:55:45, 187, 10285 12.0.0.242 ,4 ,64061 , 958 , 1014 , 0 , 0 , 0 ,15:55:46, 187, 10285 12.0.0.246 ,4 ,64062 , 958 , 1016 , 0 , 0 , 0 ,15:55:46, 187, 10285 12.0.0.250 ,4 ,64063 , 958 , 1029 , 0 , 0 , 0 ,15:55:43, 187, 10285 12.0.0.254 ,4 ,64064 , 958 , 1036 , 0 , 0 , 0 ,15:55:44, 187, 10285
RN-398 (CM-10379)	While upgrading Cumulus RMP, a prompt to configure grub-pc appears	While upgrading to the latest version of Cumulus RMP from version 2.5.5 or earlier, a prompt appears, asking you to choose onto which partitions to install the GRUB boot loader. ... 1. /dev/mmcblk0 (3783 MB; ???) 3. /dev/dm-2 (1610 MB; CUMULUS-SYSROOT1) 2. - /dev/mmcblk0p3 (268 MB; /boot) 4. none of the above (Enter the items you want to select, separated by spaces.) GRUB install devices: ... This prompt should not appear, and the issue will be fixed in a future release. In the meantime, to work around this issue, choose option 1, `/dev/mmcblk0` and continue the upgrade.
RN-597 (CM-15705)	sFlow doesn't generate flow samples to sflowd on Tomahawk-based switches	At this time, `sFlow` is not supported on switches with Tomahawk ASICs. This is a known issue.
RN-599 (CM-15949)	DHCRELAY automatically binds to eth0 when not specified in the configuration	`dhcrelay` listens for all interfaces that have an IP, even if not configured to listen for that interface. This causes `dhcrelay` to bind to unspecified ports. This behavior is expected, due to upstream configuration. The packet is dropped later in the process, as it is not coming from a configured port.
RN-602 (CM-)	sFlow ifSpeed incorrect in counter samples	Counter samples for an 80G bond (2 x 40G) exported from the switch show an interface speed (ifSpeed) of 14.464Gbps. This issue is currently being investigated.
RN-605 (CM-15515)	Unable to change the bond-modes using ifup or ifreload	When the bond mode is changed from `802.3ad` to `balance-xor or vice versa using ifup bondx or ifreload -a, the bond-mode does not change, and the following error is produced:` 2017-03-23 21:39:37,495: DEBUG: autolib.netobjects: [cumulus@127.0.0.1:1042] sudo: ('ifup bond1',) 2017-03-23 21:39:37,926: DEBUG: autolib.netobjects: warning: error writing to file /sys/class/net/bond1/bonding/mode([Errno 39] Directory not empty) This issue is being addressed in a later release.
RN-642 (CM-17107)	No reply to SNMP request (silently dropped) if the request is received on multiple interfaces	When an SNMP server has multiple network paths to reach the switch, it is expected behavior that the SNMP request would arrive at multiple interfaces. However, it has been seen that Cumulus RMP silently drops any SNMP requests that arrive at an interface that does not match the return RIB lookup. This issue occurs only if asymmetric routing is configured, where an SNMP request is received on multiple interfaces of the polled object. To work around this issue, avoid asymmetric routing to the interfaces in question and configure a static route to pin the traffic to one link/bundle.
RN-643 (CM-17473)	The dhcpd process crashes when an interface request performs a DHCP request	In certain conditions, if an interface attempts to send a DHCP request packet before the kernel port structures are fully initialized, the `dhcpd` process crashes. To work around this issue, remove the `-nl` option from the `dhcpd.service`. This issue is being investigated.

Cumulus RMP 3.3.2 Release Notes