diff mbox series

[net-next,v2,03/18] selftests/tc-testings: add selftests for cake qdisc

Message ID 20220917050304.127729-1-shaozhengchao@huawei.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series refactor duplicate codes in the qdisc class walk function | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count fail Series longer than 15 patches (and no cover letter)
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch warning WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

shaozhengchao Sept. 17, 2022, 5:03 a.m. UTC 
Test 1212: Create CAKE with default setting
Test 3281: Create CAKE with bandwidth limit
Test c940: Create CAKE with autorate-ingress flag
Test 2310: Create CAKE with rtt time
Test 2385: Create CAKE with besteffort flag
Test a032: Create CAKE with diffserv8 flag
Test 2349: Create CAKE with diffserv4 flag
Test 8472: Create CAKE with flowblind flag
Test 2341: Create CAKE with dsthost and nat flag
Test 5134: Create CAKE with wash flag
Test 2302: Create CAKE with flowblind and no-split-gso flag
Test 0768: Create CAKE with dual-srchost and ack-filter flag
Test 0238: Create CAKE with dual-dsthost and ack-filter-aggressive flag
Test 6572: Create CAKE with memlimit and ptm flag
Test 2436: Create CAKE with fwmark and atm flag
Test 3984: Create CAKE with overhead and mpu
Test 5421: Create CAKE with conservative and ingress flag
Test 6854: Delete CAKE with conservative and ingress flag
Test 2342: Replace CAKE with mpu
Test 2313: Change CAKE with mpu
Test 4365: Show CAKE class

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
---
 .../tc-testing/tc-tests/qdiscs/cake.json      | 487 ++++++++++++++++++
 1 file changed, 487 insertions(+)
 create mode 100644 tools/testing/selftests/tc-testing/tc-tests/qdiscs/cake.json

Comments

Toke Høiland-Jørgensen Sept. 20, 2022, 1:52 p.m. UTC | #1 
Zhengchao Shao <shaozhengchao@huawei.com> writes:

> Test 1212: Create CAKE with default setting
> Test 3281: Create CAKE with bandwidth limit
> Test c940: Create CAKE with autorate-ingress flag
> Test 2310: Create CAKE with rtt time
> Test 2385: Create CAKE with besteffort flag
> Test a032: Create CAKE with diffserv8 flag
> Test 2349: Create CAKE with diffserv4 flag
> Test 8472: Create CAKE with flowblind flag
> Test 2341: Create CAKE with dsthost and nat flag
> Test 5134: Create CAKE with wash flag
> Test 2302: Create CAKE with flowblind and no-split-gso flag
> Test 0768: Create CAKE with dual-srchost and ack-filter flag
> Test 0238: Create CAKE with dual-dsthost and ack-filter-aggressive flag
> Test 6572: Create CAKE with memlimit and ptm flag
> Test 2436: Create CAKE with fwmark and atm flag
> Test 3984: Create CAKE with overhead and mpu
> Test 5421: Create CAKE with conservative and ingress flag
> Test 6854: Delete CAKE with conservative and ingress flag
> Test 2342: Replace CAKE with mpu
> Test 2313: Change CAKE with mpu
> Test 4365: Show CAKE class
>
> Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>

The subject prefix is misspelled for all the test patches (should be
selftests/tc-testing without the last 's').

Also, v2 of the series wasn't properly threaded for some reason, which
makes it harder to apply as a whole.

Other than those nits, for this patch:

Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
shaozhengchao Sept. 21, 2022, 2:08 a.m. UTC | #2 
On 2022/9/20 21:52, Toke Høiland-Jørgensen wrote:
> Zhengchao Shao <shaozhengchao@huawei.com> writes:
> 
>> Test 1212: Create CAKE with default setting
>> Test 3281: Create CAKE with bandwidth limit
>> Test c940: Create CAKE with autorate-ingress flag
>> Test 2310: Create CAKE with rtt time
>> Test 2385: Create CAKE with besteffort flag
>> Test a032: Create CAKE with diffserv8 flag
>> Test 2349: Create CAKE with diffserv4 flag
>> Test 8472: Create CAKE with flowblind flag
>> Test 2341: Create CAKE with dsthost and nat flag
>> Test 5134: Create CAKE with wash flag
>> Test 2302: Create CAKE with flowblind and no-split-gso flag
>> Test 0768: Create CAKE with dual-srchost and ack-filter flag
>> Test 0238: Create CAKE with dual-dsthost and ack-filter-aggressive flag
>> Test 6572: Create CAKE with memlimit and ptm flag
>> Test 2436: Create CAKE with fwmark and atm flag
>> Test 3984: Create CAKE with overhead and mpu
>> Test 5421: Create CAKE with conservative and ingress flag
>> Test 6854: Delete CAKE with conservative and ingress flag
>> Test 2342: Replace CAKE with mpu
>> Test 2313: Change CAKE with mpu
>> Test 4365: Show CAKE class
>>
>> Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
> 
> The subject prefix is misspelled for all the test patches (should be
> selftests/tc-testing without the last 's').
> 
> Also, v2 of the series wasn't properly threaded for some reason, which
> makes it harder to apply as a whole.
> 
> Other than those nits, for this patch:
> 
> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
> 
Hi Toke：
	Thank you for your review. I will send v3.

Zhengchao Shao
diff mbox series

Patch

diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/cake.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/cake.json
new file mode 100644
index 000000000000..1134b72d281d
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/cake.json
@@ -0,0 +1,487 @@ 
+[
+    {
+        "id": "1212",
+        "name": "Create CAKE with default setting",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "3281",
+        "name": "Create CAKE with bandwidth limit",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake bandwidth 1000",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth 1Kbit diffserv3 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "c940",
+        "name": "Create CAKE with autorate-ingress flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake autorate-ingress",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited autorate-ingress diffserv3 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2310",
+        "name": "Create CAKE with rtt time",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake rtt 200",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate nonat nowash no-ack-filter split-gso rtt 200us raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2385",
+        "name": "Create CAKE with besteffort flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake besteffort",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited besteffort triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "a032",
+        "name": "Create CAKE with diffserv8 flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake diffserv8",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv8 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2349",
+        "name": "Create CAKE with diffserv4 flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake diffserv4",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv4 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "8472",
+        "name": "Create CAKE with flowblind flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake flowblind",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 flowblind nonat nowash no-ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2341",
+        "name": "Create CAKE with dsthost and nat flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake dsthost nat",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 dsthost nat nowash no-ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "5134",
+        "name": "Create CAKE with wash flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake hosts wash",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 hosts nonat wash no-ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2302",
+        "name": "Create CAKE with flowblind and no-split-gso flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake flowblind no-split-gso",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 flowblind nonat nowash no-ack-filter no-split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "0768",
+        "name": "Create CAKE with dual-srchost and ack-filter flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake dual-srchost ack-filter",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 dual-srchost nonat nowash ack-filter split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "0238",
+        "name": "Create CAKE with dual-dsthost and ack-filter-aggressive flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake dual-dsthost ack-filter-aggressive",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 dual-dsthost nonat nowash ack-filter-aggressive split-gso rtt 100ms raw overhead",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "6572",
+        "name": "Create CAKE with memlimit and ptm flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake memlimit 10000 ptm",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw ptm overhead 0 memlimit 10000b",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2436",
+        "name": "Create CAKE with fwmark and atm flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake fwmark 8 atm",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms raw atm overhead 0 fwmark 0x8",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "3984",
+        "name": "Create CAKE with overhead and mpu",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake overhead 128 mpu 256",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms noatm overhead 128 mpu 256",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "5421",
+        "name": "Create CAKE with conservative and ingress flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake conservative ingress",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate nonat nowash ingress no-ack-filter split-gso rtt 100ms atm overhead 48",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "6854",
+        "name": "Delete CAKE with conservative and ingress flag",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true",
+            "$TC qdisc add dev $DUMMY handle 1: root cake conservative ingress"
+        ],
+        "cmdUnderTest": "$TC qdisc del dev $DUMMY handle 1: root",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate nonat nowash ingress no-ack-filter split-gso rtt 100ms atm overhead 48",
+        "matchCount": "0",
+        "teardown": [
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2342",
+        "name": "Replace CAKE with mpu",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true",
+            "$TC qdisc add dev $DUMMY handle 1: root cake overhead 128 mpu 256"
+        ],
+        "cmdUnderTest": "$TC qdisc replace dev $DUMMY handle 1: root cake mpu 128",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms noatm overhead 128 mpu 128",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2313",
+        "name": "Change CAKE with mpu",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true",
+            "$TC qdisc add dev $DUMMY handle 1: root cake overhead 128 mpu 256"
+        ],
+        "cmdUnderTest": "$TC qdisc change dev $DUMMY handle 1: root cake mpu 128",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc cake 1: root refcnt [0-9]+ bandwidth unlimited diffserv3 triple-isolate nonat nowash no-ack-filter split-gso rtt 100ms noatm overhead 128 mpu 128",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "4365",
+        "name": "Show CAKE class",
+        "category": [
+            "qdisc",
+            "cake"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root cake",
+        "expExitCode": "0",
+        "verifyCmd": "$TC class show dev $DUMMY",
+        "matchPattern": "class cake",
+        "matchCount": "0",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    }
+]